Document:

<PAGE>   1
                                                                    Exhibit 10.8

                             AT&T WIRELESS SERVICES

                         VALUE ADDED RESELLER AGREEMENT

        AT&T Wireless Services National Accounts, Inc., as agent for certain of
its wireless telecommunications operating Affiliates, ("AT&T"), and the
Customer, as more specifically designated below, hereby agree that Customer's
acquisition of services from AT&T for resale and other permitted uses will be
pursuant to the terms and conditions as provided in this Agreement.

A.      CUSTOMER:

NAME OF CUSTOMER: OpenSky

ADDRESS OF CUSTOMER: 299 California Ave, Palo Alto, CA, 94301

TELEPHONE NUMBER: 650 473-9700

FAX NUMBER: 650 323-6785

PRINCIPAL CONTACT PERSONS: Barak Berkowitz, President, Patrick McVeigh, Chairman
and CEO

B.      DESCRIPTION OF AGREEMENT.

Customer would like to receive cellular digital packet data communications
service ("Service") from AT&T for Customer's distribution of certain value-added
communications services to its End Users. AT&T wishes to provide Service to
Customer based upon the value-added communications services provided by Customer
to its End Users in accordance with the terms and conditions of this Agreement.

C.      EFFECTIVE DATE.

The Effective Date of this Agreement is the date of Commercial Launch, as
defined below.

D.      TERM.

This Agreement commences on the Effective Date and remains in effect for one
year after the date of Commercial Launch, automatically renewing for successive
one-year renewal terms, unless terminated as described in the "Additional Terms
and Conditions" portion of this Agreement.

E.      EXHIBITS AND SCHEDULES

                                       -1-

<PAGE>   2

               EXHIBIT A-APPLICATION

               EXHIBIT B-SERVICE AREA

               EXHIBIT C-SERVICE PLAN

               EXHIBIT D-END USER DISCLOSURES

All Exhibits and Schedules are attached hereto and incorporated into this
Agreement by this reference.

F.      ADDITIONAL TERMS AND CONDITIONS

        In consideration of the mutual promises contained in this Agreement, the
parties, and their successors and permitted assigns hereby agree as follows:

SECTION 1. DEFINITIONS

        1.1 AFFILIATE means, with respect to any entity, any other entity that
directly Controls, is Controlled by or is under common Control with the first
entity.

        1.2 APPLICATION means the combination of the Service and Customer's
value-added communications services provided to its End Users. The Application
is more specifically described in Exhibit A hereto.

        1.3 COMMERCIAL LAUNCH means the date agreed to by AT&T and Customer as
the date that the Application will be available for a beta test of up to 5000
End Users.

        1.4 CONTROL (and all conjugations thereof) means, with respect to any
entity, the direct or indirect possession of the power to direct the management
and policies of such entity.

        1.5 CUSTOMER EQUIPMENT means all equipment (other than equipment
comprising portions of AT&T's CDPD network) necessary to enable Customer or its
End Users to receive the Service including but not limited to Customer's network
facilities, and Customer's and End User's Wireless Data Units.

        1.6 END USER means an individual or entity obtaining access to Service
from Customer.

        1.7 EVENTS OF DEFAULT means the following:

               (i) the execution of any assignment for the benefit of creditors
or the filing for relief by either party under any applicable bankruptcy,
reorganization, moratorium, or similar debtor relief laws;

                                       -2-

<PAGE>   3

               (ii) the appointment of a receiver for Customer or AT&T or for
substantially all of their respective assets or properties;

               (iii) the failure of either party to pay any sum owed to the
other hereunder at the time such amount comes due;

               (iv) the failure of either party to perform or observe any other
term, condition, or covenant to be performed by it under this Agreement;

               (v) the commission of any major felonies by or the filing of
criminal indictment by government authorities against a party, its proprietors,
partners, officers, directors or shareholders (to the extent such individuals
control in the aggregate or individual 20% or more of the voting rights or
equity interests of such party);

               (vi) the furnishing, within a 12-month period, by Customer to
AT&T of two or more checks that are not paid when presented due to insufficient
funds;

               (vii) an unauthorized assignment of this Agreement; and

               (viii) failure by Customer to meet the eligibility requirements
and all terms and conditions of each Service Plan selected by Customer.

Upon the occurrence of any of these Events of Default, a party shall be deemed
to be in default of this Agreement, unless such Event of Default is cured within
any applicable cure period identified in Section 10.2.

        1.8 NUMBER means, for each End User, the AT&T network equipment
identifier ("NEI") or mobile identification number ("MIN") assigned to Customer
for that End User to obtain access to Service.

        1.9 SERVICE means the CDPD and associated support services provided to
Customer by AT&T as set forth in this Agreement.

        1.10 SERVICE AREA means that area in which Service is made available to
Customer by AT&T. The current Service Area is set forth in Exhibit B, which
Exhibit B may be amended by AT&T from time to time. The Service Area consists of
AT&T Markets and Non-AT&T Markets as identified in Exhibit B.

        1.11 SERVICE PLAN means the rates and other terms and conditions under
which Customer purchases Service from AT&T. The current Service Plan(s) are set
forth in Exhibit C, which Exhibit C may be amended by AT&T from time to time as
provided in Section 5.1.

        1.12 SUBSCRIBER means any person or entity purchasing Service from AT&T,
including Customer.

        1.13 SUBSCRIPTION FRAUD means using or assisting another to use any
fraudulent scheme, false representation, or false credit device, or other
fraudulent means or devices in connection with Service; including, but not
limited to, the fraudulent production of information regarding a person's
identity or the use of unauthorized credit.

                                       -3-

<PAGE>   4

        1.14 UNAUTHORIZED ACCESS means any unauthorized use of Service through
the modification of the electronic serial number ("ESN") originally installed by
the manufacturer in a Wireless Data Unit which shall include the practices
generally referred to as "counterfeiting," "cloning fraud," or "tumbling fraud".

        1.15 WIRELESS DATA UNIT means the equipment used to originate or receive
wireless data transmissions, including but not limited to personal digital
assistants and wireless modems.

SECTION 2. THE SERVICE

        2.1 PROVISION

               2.1.1 AT&T shall provide and Customer agrees to purchase Service
as provided in this Agreement. Customer acknowledges that Service is provided by
AT&T directly and through agreements with other carriers; and that AT&T cannot
control the quality of the services when provided through an agreement with
another carrier. AT&T shall use commercially reasonable efforts to provide the
Service in a manner using the reasonable care and skill of a competent
telecommunications services provider.

               2.1.2 Service provided pursuant to this Agreement will be
provided only upon the request of Customer's authorized representatives and not
by End Users, and only in connection with the Application.

               2.1.3 Customer is not authorized under this Agreement to use the
Service independent of the Application or in conjunction with any other value
added communications services unless Exhibit A is amended to include such other
value added communications services.

        2.2 SUPPORT SERVICES. AT&T will provide to Customer, and not directly to
End Users, network monitoring, technical assistance and trouble-shooting support
of the Service as described in AT&T's Support Procedures provided to Customer by
AT&T from time to time. Customer will cooperate with AT&T in any troubleshooting
of the Service and Customer Equipment required to maintain the efficient
operation of the Service.

        2.3 NUMBERS. Customer may order Numbers by complying with AT&T's
procedures for ordering Numbers. Additional Numbers will be issued to Customer
provided Customer is not in default hereof, and subject to any requirements for
a security deposit. AT&T may periodically be required for system or other
reasons to change any of Customer's Numbers. AT&T will, whenever possible, give
Customer prior written notice of such change. AT&T will use its best efforts to
minimize such changes.

        2.4 USE

               2.4.1 Customer shall use and resell the Service for lawful
business purposes and only in connection with the Application.

                                       -4-

<PAGE>   5

               2.4.2 AT&T is obligated only to Customer, with which it is in
privity of contract, and not to End Users, with whom AT&T is not in privity. End
Users are not to be deemed third-party beneficiaries of this Agreement.

               2.4.3 Customer is solely responsible for all risks and expenses
incurred with its provision of the Service and the provision of the Application
to End Users. Except as provided in Section 20.3, Customer will pay AT&T for all
charges for Service used by Customer or its End Users or third parties using a
Number assigned to Customer. In connection with such activities, Customer will
act in all respects for its own account and will be responsible for such things
as credit verification, deposits, billing, collection, and bad debt.

               2.4.4 Customer will disclose to End Users the provisions set
forth in Exhibit D in substantially the form set forth therein.

               2.4.5 Customer is responsible for all End User support regarding
all aspects of End Users' use of the Service (whether arising in connection with
hardware, software or Service), including but not limited to issues relating to
modems, protocol stacks, software configuration and setup, usability issues,
Service activation, Service coverage, billing, and any and all other aspects of
technical services and customer care. This includes, but is not limited to,
Customer taking the End Users' calls and using reasonable commercial efforts to
remedy any Customer or End User-identified problem without AT&T's participation.
Customer will report a problem to AT&T only upon reasonable verification that
the problem is due to reasons other than misuse, malfunction or the failure of
the Customer Equipment to meet the technical standards for compatibility with
the Service, or failure of the End User to understand how to use the Service.

        2.5 CONTINUING RIGHT. AT&T will have the continuing right to market and
sell the Service and any other communications services to any third parties,
including but not limited to current, future and potential End Users, and to
communicate with such third parties, including but not limited to with respect
to Customer's performance hereunder.

        2.6 PROCEDURES. Customer will comply with AT&T's policies and procedures
for obtaining Numbers, for configuring and programming Customer Equipment, and
for activating or deactivating Service with respect to any End User. AT&T may
from time to time modify these policies and procedures by giving Customer
written notice of such modification.

        2.7 SERVICE AREA. The Service is available only to properly configured
Wireless Data Units within the Service Area and is subject to (i) transmission
limitations caused by atmospheric, topographical or other conditions affecting
transmission; (ii) equipment modifications, repairs and other similar activities
necessary for the proper or improved operation of the Service; (iii) equipment
failures beyond AT&T's reasonable control; and (iv) Customer Equipment
limitations.

        2.8 INTERRUPTIONS. The Service may be temporarily refused, limited,
interrupted or curtailed due to governmental regulations or orders, system
capacity limitations or equipment maintenance, repair, modifications, upgrades
or relocation. AT&T will notify Customer of scheduled network outages, and will
attempt to notify Customer of unscheduled network outages that are expected to
last more than four (4) hours and that may affect the Service.

                                       -5-

<PAGE>   6

        2.9 LIMITATIONS ON USE. Customer and its End Users will comply with any
limitations on use of Service contained in the Service Plan. AT&T reserves the
right to audit use of Service to determine conformance with any limitation on
use. In the event AT&T determines in its sole discretion that usage does not
conform to such limitation on use, AT&T may terminate this Agreement.

SECTION 3. INTERCONNECTION

        Customer will be required to obtain and pay for any interconnection
services required to connect Customers or End Users' facilities to AT&T's
network. Customer will follow AT&T policies and procedures for such connections.

SECTION 4. CUSTOMER EQUIPMENT

        Customer will be responsible for the acquisition, programming,
installation, maintenance and repair of all Customer Equipment. Customer will
ensure that all Customer Equipment is technically and operationally compatible
with the Service and meets all applicable federal and state laws, rules and
regulations. Customer may not associate a Number with more than one Wireless
Data Unit.

SECTION 5. RATES

        5.1 AT&T is willing to offer the Service Plan to Customer based upon,
among other things, the commitments given by Customer under this Agreement and
Customer's ability and commitment to provide the value-added communication
services as described in Exhibit A.

        5.2 Customer will pay AT&T for Service provided to Customer and its End
Users in accordance with the applicable Service Plan.

        5.3 SPECIAL OFFERS. Unless the Service Plan provides otherwise, Customer
will not be entitled to participate in any promotions or have access to rewards,
free usage, special Subscriber offerings, equipment, warranty and insurance
packages, and other features provided to other Subscribers.

SECTION 6. EXCLUSIVITY

        6.1 ADVERTISING. For a period from the Effective Date to five months
after Commercial Launch, Customer shall not advertise or promote the
Application, either directly or indirectly, in a way which associates the
Application in any manner with competitors of AT&T other than to the extent
necessary to explain coverage in areas not served by AT&T.

        6.2 ACTIVATIONS. With respect to all End Users obtained by Customer
within an AT&T Market, Customer will assign such End Users a Number provided by
AT&T.

SECTION 7. CUSTOMER'S IDENTIFICATION OF AT&T SERVICE

        7.1 IDENTIFICATION AS VALUE ADDED RESELLER. Customer will identify
itself in marketing and collateral describing the Service according to the
graphic standards and guidelines as published by

                                       -6-

<PAGE>   7

AT&T from time to time. AT&T may modify these graphic standards and guidelines
from time to time upon written notice to Customer.

        7.2 AT&T APPROVAL. All uses of any AT&T Marks (as defined in Section 19
below) by Customer must be approved in advance by AT&T Customer will be
responsible to ensure that all advertising and promotional activities conducted
by Customer will comply with all applicable laws, whether or not such
advertising was reviewed or approved by AT&T.

        7.3 QUARTERLY MEETINGS. The parties will meet once each calendar quarter
to review Customer's planned use of AT&T Marks during the next calendar quarter
and to coordinate the parties' use of AT&T Marks. Customer will be responsible
for scheduling these meetings.

        7.4 OBLIGATIONS UPON TERMINATION. Customer will immediately upon
termination of this Agreement either destroy all material referencing AT&T or
containing AT&T Marks, or will remove all references to AT&T or AT&T Marks
contained in such material.

SECTION 8. MARKETING FUNDS

        8.1 AMOUNT OF FUNDS. AT&T will make available to Customer up to
$10,000,000 in marketing funds to finance certain marketing activities approved
in advance by AT&T.

               8.1.1 After the Application has been tested and accepted by AT&T,
AT&T will make the first $5,000,000 available to Customer to be used for
activities which advertise or promote the launch of the Application.

               8.1.2 AT&T will make the second $5,000,000 available to Customer
after Customer has obtained 5,000 End Users on AT&T's Numbers. These funds will
be used for activities that advertise or promote the Application.

        8.2 USE OF FUNDS. The marketing funds made available by AT&T will be
used for activities that have been approved by AT&T and which include a
prominent display of AT&T's Marks (as defined in Section 19 below). These funds
may not be used by Customer to subsidize the price of any Wireless Data Units
for End Users. These funds must be directed to potential End Users within AT&T
Markets, provided that internet and national (as agreed by AT&T) marketing
efforts shall be deemed to be directed to potential End Users within AT&T
Markets.

               8.2.1 CUSTOMER FUNDS. During the term of this Agreement and at
the times that AT&T contributes marketing funds, Customer will contribute an
equal amount of funds for similar marketing activities; provided that funds
contributed by Customer may be used to subsidize the price of Wireless Data
Units for End Users.

        8.3 ACCESS TO FUNDS. To access the marketing funds described in this
section, Customer must submit a request for the funds, together with a
description of the activities to be funded and a budget of the costs of the
activities. AT&T will use reasonable efforts to respond to each such request

                                       -7-

<PAGE>   8

within 10 days of receipt. Upon approval of the activities and the budget by
AT&T, Customer may have access to the amount approved, which shall be provided
by AT&T promptly after such approval. Customer may begin submitting requests for
funds at any time after the Effective Date.

        8.4 REPORTS. Customer will provide a quarterly report of the activities
funded by the marketing funds, including a report of money actually spent on the
activities.

        8.5 AUDIT. From time to time, AT&T may request an audit as to Customer's
use of marketing funds. Upon reasonable notice from AT&T, Customer shall make
available to AT&T or AT&T's representative books and records sufficient to
verify the amount of Customer's expenditures, the items or services purchased by
the funds, and the publication, broadcast or occurrence of the activities so
funded.

        8.6 TERMINATION AND REPAYMENT OF FUNDS. In the event that the Agreement
is terminated for any reason prior to the end of its term, AT&T will not be
responsible for the payment of any marketing funds described in this Section for
any activities which have not been approved as of the termination date. Further,
in the event that this Agreement is terminated for any reason prior to the end
of its term, any marketing funds for which expenditures have not been approved
by AT&T shall revert to AT&T.

SECTION 9. INVOICES, PAYMENTS, TAXES AND SECURITY DEPOSITS

        9.1 INVOICES. AT&T will provide Customer written invoices on a monthly
basis. Customer shall pay all charges associated with Service.

        9.2 PAYMENT. Customer will pay each invoice within thirty (30) days
following the invoice date. Any payment not received within such time will
accrue interest at the lesser of one and one-half percent (1.5%) per month or
the maximum lawful rate. Additional fees will be assessed for any check returned
for insufficient funds. Customer is responsible for payment of and shall pay all
charges for Service furnished under this Agreement.

        9.3 BILLING ADJUSTMENTS. In the event of a total Service outage
("outage") within the portion of the Service Area associated with any Number
which is not caused by the Customer or its End User, and which lasts for a
period of twenty-four (24) hours or more, a credit allowance will be made at
Customer's request in the form of a pro rata adjustment of the fixed charges
billed by AT&T to Customer with respect to such Number. Periods of discontinuous
outage, where the outage is separated by over 2 hours of service may not be
accumulated in determining if an outage has continued for at least twenty-four
(24) hours. In order to receive such credit, Customer must submit a written
request to AT&T, stating the date and location of the outage, the Numbers
affected, and such other information as AT&T may reasonably require. Such notice
must be received by AT&T within ten (10) business days following the last date
of the period of outage. Except as provided herein, AT&T shall incur no
liability for outages.

        9.4. DISPUTED CHARGES.

               9.4.1 PROCEDURE TO DISPUTE CHARGES. Customer shall timely pay any
undisputed charges. As a prerequisite to disputing any charges, Customer must
(i) notify AT&T in writing within

                                       -8-

<PAGE>   9

five (5) business days of the due date of a bill that Customer disputes certain
charges, (ii) advise AT&T of the basis of its dispute, and (iii) provide AT&T
with such documentation as it may have to support its position. Within thirty
(30) business days thereafter, AT&T shall provide Customer with a written
response supported by documentation. If AT&T's response indicates a continuing
dispute, within ten (10) business days thereafter, Customer and AT&T shall meet
in a good faith effort to resolve the billing dispute. Any dispute not resolved
within thirty days of AT&T's response may be submitted by either party to
arbitration.

        9.4.2 LOSS OF WIRELESS DATA UNIT. In the event Customer's or an End
User's Wireless Data Unit is lost, stolen, or otherwise absent from Customer's
or the End User's possession or control, Customer shall nevertheless be liable
for all charges attributable to the Number assigned to such Wireless Data Unit
until it notifies AT&T during business hours of such loss, theft, or
unauthorized absence, in which case, Customer's liability therefor shall
terminate at the earlier of (i) deactivation of the Number by AT&T, or (ii) the
end of one (1) business hour after such notification is received by AT&TAT&T
shall use reasonable efforts, taking into account all circumstances which shall
include other operational demands placed upon its employees, to deactivate
Service to the Number affected as soon as practicable.

        9.5 TAXES. Customer will pay all applicable federal, state and local
sales, use, public utilities, gross receipts or other taxes, fees, or recoveries
imposed on AT&T as a result of this Agreement (collectively, "Taxes") (other
than taxes imposed on the net income of AT&T). Customer will submit certificates
of resale for federal excise tax and as required for the states in which it will
resell Service. Customer is responsible for collecting from its End Users and
paying all Taxes associated with its provision of Service and the Application.
Customer will reimburse AT&T for any such Taxes paid by AT&T on Customer's
behalf.

        9.6 SECURITY DEPOSITS. In the event that Customer is more than thirty
(30) days late on any three consecutive payments, AT&T may require Customer to
provide it with a cash deposit or other security reasonably acceptable to AT&T
based upon AT&T's assessment of Customer's creditworthiness.

SECTION 10. TERMINATION

        10.1 TERMINATION AT END OF TERM. Either party may terminate this
Agreement by providing the other party with written notice of termination at
least ninety (90) days prior to the end of the then current term.

        10.2 TERMINATION UPON DEFAULT. Upon an Event of Default which the
defaulting party fails to cure within thirty (30) days following its receipt of
written notice from the non-defaulting party the non-defaulting party, in
addition to any other remedies it may have at law or in equity (including the
right to recover or resolve any actual or potential damages to or claims against
a party during any notice period), may terminate this Agreement without further
notice after expiration of any additional time to cure the default as provided
in the notice to the defaulting party.

                                       -9-

<PAGE>   10

        10.3 TERMINATION FOR GOVERNMENTAL REASONS. AT&T may terminate this
Agreement immediately and without penalty upon written notice to Customer if the
Federal Communications Commission, any other regulatory agency, legislative
body, or court promulgates any rule, regulation, judgment or order that
prohibits or substantially impedes (in effect or application) AT&T from
fulfilling its obligations hereunder. AT&T will notify Customer promptly
following AT&T's determination that an event permitting termination under this
Section has occurred.

        10.4 SURVIVAL. Any and all provisions of this Agreement that may
reasonably be interpreted or construed as surviving termination or which may be
necessary or convenient for a party to effectively enforce the terms of this
Agreement will survive the termination of this Agreement.

        10.5 PAYMENT UPON TERMINATION. Upon termination of this Agreement for
any reason, all amounts owing to AT&T hereunder will become due and payable and
AT&T reserves the right to offset or deduct any amounts due from Customer
against security deposits or other funds due to Customer.

SECTION 11. FORCE MAJEURE

        Neither party will be liable for any loss, damage, cost, delay or
failure to perform resulting from causes beyond its reasonable control
including, but not limited to, acts of God, fires, floods, earthquakes, strikes,
insurrections, governmental orders, riots, lightning or storms, or delays of
suppliers or subcontractors for the same causes.

SECTION 12. INDEMNIFICATION AND INSURANCE

        12.1 INDEMNITY. Customer and AT&T each hereby agree to defend,
indemnify, and hold harmless each other and each other's Affiliates, and their
former, current, and future officers, directors, employees, agents, successors,
and assigns, from and against any claims, costs, and expenses, including
punitive damages, court costs, and reasonable attorneys' and expert witness'
fees before and at trial and on appeal (collectively, "Claims"), arising from a
breach of this agreement by or any conduct in connection with this Agreement by
the indemnifying party (including such party's Affiliates, and their officers,
directors, employees, agents, and contractors). Customer further agrees to
defend, indemnify, and hold harmless AT&T, its Affiliates, and their former,
current, and future officers, directors, employees, agents, successors, and
assigns, from and against any Claims of End Users. Notwithstanding the
foregoing, the obligations of both Customer and AT&T to defend, indemnify, and
hold harmless shall not apply to the extent such claims result from the other
party's negligence or willful misconduct.

        Within ten days after being notified of any Claims to which these
indemnification obligations may apply, the party receiving such notice shall
notify the party from whom the indemnification is sought (the "Indemnifying
Party"), and shall give reasonable opportunity to the Indemnifying Party to
defend the claim at its own expense and with counsel of its own selection;
provided, however, that the party seeking indemnification shall at all times
have the right to participate fully, at its own expense, in the defense of and
to approve any settlement of the Claims.

        If the Indemnifying Party, within 30 days after notice, shall fail to
accept defense of the Claims, then the party seeking indemnification shall have
the right, but not the obligation, to undertake the defense of, and to
compromise or settle (exercising reasonable business judgment), the Claims on

                                      -10-

<PAGE>   11

behalf, for the account, and at the risk of the Indemnifying Party. If the
Claims cannot by their nature be defended solely by one party, the other party
shall make available all information and assistance that may reasonably be
requested, regardless of any obligations to indemnify hereunder.

        12.2 INSURANCE.

        Customer shall keep in full force and effect a policy of public
liability, personal injury, property damage, and contractual liability insurance
with respect to the business operated by Customer, which insurance shall cover
each occurrence in an amount not less than $1,000,000 and shall cover property
damage in an amount not less than $500,000.00. Such policy or policies shall
name AT&T as an additional insured and shall be procured from an insurance
carrier reasonably acceptable to AT&T. Upon request, Customer shall furnish AT&T
with a certificate evidencing such insurance. Such insurance shall provide that
the insurer will not cancel, materially alter, or allow such insurance to expire
without first giving AT&T thirty (30) days prior written notice.

SECTION 13. NO WARRANTIES

        AT&T SUPPLIES A SERVICE, AND NOT GOODS. AT&T MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, WITH RESPECT TO THE SERVICE OR THE PERFORMANCE OF ANY
OBLIGATIONS HEREUNDER INCLUDING, WITHOUT LIMITATION, WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ALL SUCH WARRANTIES ARE
EXPRESSLY EXCLUDED. AT&T IS NOT THE MANUFACTURER OF ANY CUSTOMER EQUIPMENT AND
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT THERETO. TO THE EXTENT
AT&T PROVIDES ACCESS TO INFORMATION PROVIDED BY OTHER SOURCES, AT&T ACCEPTS NO
LIABILITY FOR AND MAKES NO WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THE
CONTENT THEREOF. CUSTOMER HAS NOT RELIED ON AND WILL NOT CLAIM THAT IT IS
ENTITLED TO THE BENEFITS OF ANY REPRESENTATIONS, PROMISES, DESCRIPTION OF
SERVICES OR OTHER STATEMENT NOT SPECIFICALLY SET FORTH IN THIS AGREEMENT.

SECTION 14. LIMITATION OF LIABILITY

        14.1 NO CONSEQUENTIAL DAMAGES. NEITHER PARTY WILL BE LIABLE TO THE OTHER
(OR ITS END USERS, CUSTOMERS OR ANY THIRD PARTY) FOR ANY INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF SUCH PARTY'S FAILURE TO PERFORM UNDER THIS
AGREEMENT. NOTHING IN THIS SECTION 14.1 WILL LIMIT A PARTY'S OBLIGATION TO FULLY
INDEMNIFY THE OTHER UNDER SECTION 12 FOR ACTIONS BROUGHT BY THE INDEMNIFYING
PARTY'S CUSTOMERS, END USERS OR BY ANY THIRD-PARTY, EVEN IF SUCH ACTIONS INCLUDE
CLAIMS FOR INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

        14.2 LIMITATION OF ACTIONS. EXCEPT FOR ACTIONS ARISING IN CONNECTION
WITH SECTION 12, NEITHER PARTY MAY BRING A LEGAL ACTION WITH RESPECT TO THIS
AGREEMENT MORE THAN TWENTY-FOUR (24) MONTHS AFTER THE CAUSE OF ACTION ACCRUES.

                                      -11-

<PAGE>   12

        14.3 LIABILITY CAP. EXCEPT FOR LIABILITIES ARISING UNDER SECTION 12, THE
AGGREGATE LIABILITY OF AT&T FOR CLAIMS RELATING TO THIS AGREEMENT, WHETHER FOR
BREACH OR IN TORT, WITH RESPECT TO CUSTOMER, END USERS, OR OTHER USERS OF
SERVICE OR FACILITIES, WILL NOT EXCEED THE AMOUNT PAID BY CUSTOMER TO AT&T IN
THE TWO MONTH PERIOD PRECEDING THE DATE THE CLAIM AROSE.

        14.4 PARTY. FOR THE PURPOSES OF THIS SECTION 14, "PARTY" MEANS THE
PARTY, ITS SUBSIDIARIES AND AFFILIATES AND THEIR RESPECTIVE OWNERS DIRECTORS,
OFFICERS, EMPLOYEES, AGENTS, REPRESENTATIVES, SUBCONTRACTORS AND SUPPLIERS.

        14.5 SECURITY. ALTHOUGH THE LAW GENERALLY PROHIBITS THIRD PARTIES FROM
MONITORING CELLULAR TRANSMISSIONS, AT&T CANNOT GUARANTY THE SECURITY OF DATA
TRANSMISSIONS. AT&T SHALL NOT BE LIABLE FOR ANY LACK OF SECURITY RELATING IN ANY
WAY TO USE OF THE SERVICE OR CUSTOMERS OR ITS END USERS DATA TRANSMISSIONS.
CUSTOMER AGREES THAT AT&T SHALL NOT BE LIABLE FOR DISCLOSURES AS A RESULT OF USE
OF THE SERVICE.

SECTION 15. CONFIDENTIALITY

        15.1 CONFIDENTIAL INFORMATION. During the term of this Agreement either
party may (but shall not be obligated to) disclose to the other information
which is considered proprietary or confidential by the disclosing party. Without
the disclosing party's specific prior written consent, disclosure shall not be
made to a third party (including but not limited to End Users) of any
information which is designated confidential or proprietary and which is
supplied by one party to the other party; and which information is not otherwise
generally available to the public or is not already known to the other party;
provided, however, either party may disclose such information in compliance with
court processes or similar agency requirements if the other party has been given
ten days prior written notice of the proposed disclosure or as much notice as is
reasonably possible if the situation does not permit such ten (10) day notice.
The parties agree that equitable relief is available for any breach or
threatened breach of this Section 15.

        15.2 ADDITIONAL PROTECTION OF CONFIDENTIAL INFORMATION. In the
performance of this Agreement, AT&T's Affiliates, officers, directors, agents
and employees may come into possession of information about Customer's End
Users, including but not limited to Numbers and usage or other forms of
identification of End Users. Neither AT&T nor any person or entity obtaining
such information by or through AT&T may use any such information except as
required to provide Service to Customer under this Agreement. However, any
information independently developed by AT&T which includes End User data may be
used by AT&T at its sole discretion. Such information shall be treated as
Customer proprietary information pursuant to Section 15.1 above.

SECTION 16. NOTICES

        All notices, consents, approvals and other communications required or
permitted to be given or made hereunder (a "notice") will be in writing and will
be delivered (i) personally (if to a corporation, to an officer; if to a
partnership, to a partner; if to a limited liability company, to a member or
manager); (ii) by private overnight courier; (iii) by facsimile transmission; or
(iv) by registered or

                                      -12-

<PAGE>   13

certified mail, sent to the recipient's address or facsimile telephone number
and attention of the individual as set forth following the signature lines
hereto, or to the registered agent of the recipient in the recipient's state of
incorporation or formation, or such other address or facsimile telephone number
or individual as may be specified by notice. All notices will be deemed to have
been given on (i) the date of receipt if delivered personally or by private
overnight courier; (ii) the date of transmission with confirmation of successful
transmission by the sender's equipment if transmitted by facsimile transmission;
or (iii) the third day following posting if transmitted by registered or
certified mail. Any notice received after 5:00 p.m. local time in the city and
state where delivered shall be deemed to have been made on the next business
day.

SECTION 17. ASSIGNMENT

        Except as provided in this Section, neither party may assign or transfer
this Agreement, or its rights or obligations hereunder, without the prior
written consent of the other party. Either party may assign this Agreement,
without the other's consent, to (i) any Affiliate of the assignor, or (ii) any
person or entity that acquires the assignor or substantially all of the
assignor's business through any merger, consolidation or stock or asset
purchase; provided that the assignee agrees in writing to be bound by the
provisions of this Agreement. In addition, AT&T may assign certain of its rights
and obligations under this Agreement without Customer's consent.

SECTION 18. NO AGENCY

        AT&T and Customer are independent contracting parties. This Agreement
does not create any partnership, joint venture or agency relationship between
the parties.

SECTION 19. MARKS

        19.1 Customer recognizes the right, title and interest of AT&T and its
respective Affiliates in and to all service marks, trademarks and trade names
used by any of them in connection with the Service (the "Marks"). Customer
agrees not to engage in any activities or commit any acts, directly or
indirectly, which may contest, dispute, or otherwise impair such right, title,
and interest of AT&T and its respective Affiliates therein. Customer will not
gain any property rights to the Marks by virtue of this Agreement and will not
use any Marks without AT&T's prior written consent.

        19.2 AT&T recognizes the right, title and interest of Customer and its
respective Affiliates in and to all service marks, trademarks and trade names
used by any of them in connection with the Service (the "Customer Marks"). AT&T
agrees not to engage in any activities or commit any acts, directly or
indirectly, which may contest, dispute, or otherwise impair such right, title,
and interest of Customer and its respective Affiliates therein. AT&T will not
gain any rights to the Customer Marks by virtue of this Agreement and will not
use any Customer Marks without Customer's prior written consent.

        19.3 Neither party will engage in any activity that may be harmful to
the other party's goodwill or may reflect unfavorably on its marks. This
prohibition includes, without limitation, the commission of any unfair trade
practice, the publication of any false, misleading or deceptive advertising, or
the commission of any fraud or misrepresentation.

                                      -13-

<PAGE>   14

        19.4 All advertising and promotional activities conducted by Customer
will be completely factual and ethical, and Customer shall be solely responsible
for the content thereof, whether or not reviewed by Company.

SECTION 20. ABUSE; INTERFERENCE

        20.1 ABUSE OR FRAUDULENT USE. Service to a Number may be restricted
according to procedures set forth in this Section 20 if there is abuse or
fraudulent use thereof. Abuse and fraudulent use of Service include, but are not
limited to:

               (i) Attempting or assisting another to access, alter, or
interfere with the communications of and/or information about another wireless
customer;

               (ii) Tampering with or making an unauthorized connection with any
AT&T facilities;

               (iii) Subscription Fraud;

               (iv) Using Service in such a manner so as to interfere
unreasonably with the use of Service by one or more other wireless customers or
End Users or to interfere unreasonably with AT&T's ability to provide Service;

               (v) Using Service to convey information which is obscene,
salacious, prurient, or unlawful; and

               (vi) Unauthorized Access.

        Customer agrees to make good faith efforts to minimize abuse or
fraudulent use as described above, to promptly report to AT&T any such abuse or
fraudulent use of which Customer becomes aware, and to cooperate in any
investigation or prosecution initiated by AT&T.

        20.2 CANCELLATION OF SERVICE TO END USER. AT&T may require Customer to
cancel the right to market or use Service by any of its agents or End Users
abusing or fraudulently marketing or using Service. However, if Customer has
requested advance notice of cancellation as provided in AT&T's procedures, AT&T
will not cancel Service until receipt of Customer's notice. For so long as AT&T
acts in good faith under this Section, Customer shall indemnify and hold AT&T
harmless as set forth in Section 12.1 against any Claims arising therefrom.

        20.3 LIABILITY FOR ABUSE OR FRAUDULENT USAGE. Customer shall be liable
for charges or other costs or damages resulting from abuse or fraudulent use as
described below.

               20.3.1 Customer shall have full liability for charges, costs or
damages resulting from Subscriber fraud, or from Customer or any of Customer's
employees, agents or End Users, either negligently or intentionally facilitating
the abuse or fraudulent use which shall include, without limitation, any failure
to give prompt notice of suspected abuse or fraudulent use based on information
available to Customer.

               20.3.2 If at any time AT&T or Customer reasonably suspects that
any Number(s) may be, has been, or is being used to abuse or fraudulently obtain
use of Service, and AT&T is permitted to terminate Service to that Number(s)
immediately upon AT&T's discovery and without prior notice to Customer, Customer
shall have no liability for abuse or fraudulent use charges, costs or damages
incurred after AT&T's discovery, provided Customer has not asked for notice
pursuant to Section

                                      -14-

<PAGE>   15

20.3.3 AT&T shall use reasonable efforts to provide prompt subsequent notice of
termination of Service to Customer during business hours.

               20.3.3 Customer may notify AT&T in writing that it elects to
receive advance notice of the cessation of Service to Numbers as the result of
suspicions of abuse or fraudulent use. In such case, commencing at the time AT&T
determines, or Customer claims it suspects, that a Number may be, has been, or
is being used for abuse or fraudulent use, Customer shall bear full liability
for any further usage of the Number until one (1) hour after the Customer
notifies AT&T of its request to terminate Service with respect to such Number.

               20.3.4 In the event Customer determines that charges, costs or
damages on an invoice are the result of Unauthorized Access which was not
previously discovered by the parties, Customer shall not be liable for such
Unauthorized Access if Customer provides AT&T with clear and convincing evidence
of the Unauthorized Access, such as: (i) call detail information for the End
User's account; and (ii) a statement by Customer that it has thoroughly
investigated the alleged Unauthorized Access and that it will cooperate
reasonably in obtaining affidavits or other required documentation required for
any prosecution of the person fraudulently using the Service. AT&T may require
affidavits prior to issuing any credits if Customer does not comply with this
Section. Such investigation by Customer should include contacting or attempting
to contact a sufficient number of recipients of calls at issue of each End User
so as to establish a reasonable basis for inferring that the remainder of such
calls were the result of unauthorized access.

SECTION 21. ARBITRATION; JURISDICTION; GOVERNING LAW

        21.1 STATE LAW. The validity, construction, and performance of this
agreement shall be governed by and interpreted in accordance with the laws of
the state of Washington.

        21.2 COURT PROCEEDINGS/VENUE. The parties hereby consent to the sole and
exclusive jurisdiction and venue of the state and federal courts located in King
County, Washington.

        21.3 ATTORNEY'S FEES. In the event an action is commenced by either
party to enforce the terms of this Agreement, the substantially prevailing party
in such action shall be entitled to its reasonable costs and attorneys' and
expert witness' fees incurred therein through appeal. For purposes of this
Section, the efforts of in-house attorneys and their staff shall be valued at
rates prevailing in the market for private practitioners.

SECTION 22. GENERAL

        22.1 WAIVER. The waiver of any provision or default of this Agreement
will not constitute a waiver of any other provision or default. If any provision
of this Agreement is deemed to be unenforceable, the remaining provisions will
remain in full force and effect.

        22.2 SEVERABILITY. Should any part of this Agreement for any reason be
declared invalid by court order or by any regulatory agency, such order shall
not affect the validity of any remaining portion; and the remaining portion of
the Agreement shall continue in full force and effect unless such order
materially alters the nature of the obligations of either party hereto. In such
event, this Agreement shall immediately terminate.

        22.3 ENTIRE AGREEMENT. This Agreement, together with its attached
Exhibits, sets forth the entire agreement between the parties concerning the
subject matter hereof. Any amendment or

                                      -15-

<PAGE>   16

modification to this Agreement will be effective only if made in writing and
signed by both parties. Provided, however, this Agreement shall be deemed
automatically amended to the extent inconsistent with any federal, state or
local law, regulation, court order or tariff required to be filed by AT&T.

        22.4 COUNTERPARTS. This Agreement may be executed in one or more
counterparts, each of which shall constitute an original agreement, but all of
which together shall constitute one and the same instrument.

        22.5 COMPLIANCE WITH LAWS. AT&T and Customer shall at all times comply
in all material respects with all laws, rules and regulations applicable to the
performance of this Agreement. In the event that the Service is or becomes
subject to any Federal, state, or local regulation or tariff, then those
provisions shall be deemed amended immediately as may be required under such
regulation or tariff.

        22.6 AMENDMENTS. This Agreement may be amended only by a written
instrument executed by both parties.

        22.7 PREPARATION OF AGREEMENT. This Agreement shall not be construed
more strongly against any party regardless of who is responsible for its
preparation or drafting.

SECTION 23. INDEPENDENT INVESTIGATION

        AT&T and Customer acknowledge they have read this Agreement and
understand and accept the terms, conditions, and covenants contained herein.
Customer acknowledges and understands that AT&T may at any time also be engaged
directly or indirectly through other resellers and through dealers or outlets of
any kind, in soliciting potential Subscribers for the Service or other services
or products. Customer acknowledges that it understands that it will not obtain
any exclusive rights under this Agreement, either with respect to a ---
territory or otherwise Customer also acknowledges and understands that AT&T may
sell the Service to others who may resell it. Customer has independently
investigated the business of providing wireless data service and the
profitability (if any) and risks thereof and is not relying on any
representation, guarantee, or statement of AT&T other than as set forth in this
Agreement.

        Customer also acknowledges that AT&T does not represent: (i) the amount
of profits, net or gross, that Customer can expect from its operations under
this Agreement or that Customer will derive income from the sale of AT&T's
services under this Agreement; (ii) that AT&T will refund any payments made by
Customer to AT&T under this Agreement except as otherwise provided herein;(iii)
AT&T will provide a sales or marketing program that will enable Customer to
derive income under this agreement.

        Customer further acknowledges that, except as specifically set forth in
this Agreement, AT&T does not make any representations regarding: (i) the
quantity or quality of service to be sold by Customer; (ii) the provision by
AT&T to Customer of training and management assistance; (iii) the size (other
than the geographic area), choice, potential, or demographic nature of the area
in which AT&T's service is available or the number of other dealers or reselling
customers that are or may in the future operate in that area; (iv) the
termination, transfer, or renewal provisions of this Agreement other than as set
forth in the Agreement; or (v) the sponsorship or participation of a primary
marketer of trademark products or services in Customer's operations under this
Agreement other than as may be set forth in this Agreement.

                                      -16-

<PAGE>   17

        AT&T acknowledges that Customer may at any time solicit potential
customers for wireless data service provided by Customer directly or indirectly
through business relationships with entities competing with AT&T.

CUSTOMER: OmniSky Corp              AT&T WIRELESS SERVICES NATIONAL ACCOUNTS,
                                    INC., AS AGENT FOR CERTAIN OF ITS AFFILIATES

By /s/ Signature Illegible          By /s/ Signature Illegible
Its:                                Its: SR. VP

                                      -17-

<PAGE>   18

                                    EXHIBIT A

                                   APPLICATION

Customer will offer end-users CDPD service on handheld devices in order to
access the internet and to provide certain internet-based content and
applications. Through integration and customization Customer will offer the user
a simple integrated solution from a single source that provides hardware,
service and support.

                                      -18-

<PAGE>   19

                                    EXHIBIT B

                                  SERVICE AREA

Customer can receive Service in the following MSAs:

ARIZONA:              Phoenix*, Tucson*

CALIFORNIA:           Fresno, Sacramento, San Diego*, San Francisco*, San Jose*,
                      Bakersfield*

COLORADO:             Denver

CONNECTICUT:          Bridgeport*, Hartford*, New Haven*, New London/Norwich*

DELAWARE:             Wilmington*, Dover*

FLORIDA:              Orlando, Tampa/St. Petersburg, West Palm Beach/Boca Raton

                      Miami/Ft. Lauderdale, Lakeland/Winter Haven*

ILLINOIS:             Chicago*

INDIANA:              Gary*, Indianapolis*

KENTUCKY:             Louisville*

MARYLAND:             Baltimore*, Frederick*

MASSACHUSETTS:        Boston*, Worcester*

MICHIGAN:             Detroit*

MINNESOTA:            Minneapolis/St. Paul

MISSOURI:             St. Louis*

NEVADA:               Las Vegas, Reno

NEW HAMPSHIRE:        Manchester*

NEW JERSEY:           Atlantic City*, Trenton*, Long Branch*, New Brunswick*,
                      Ocean City*, Vineland

NEW MEXICO:           Albuquerque*, Las Cruces*

NEW YORK:             New York

NORTH CAROLINA:       Charlotte*, Raleigh*

OHIO:                 Cincinnati*, Columbus*, Dayton*, Cleveland*, Akron*,
                      Canton*

<PAGE>   20

OKLAHOMA:             Oklahoma City, Tulsa

OREGON:               Portland

                                      -19-

<PAGE>   21

PENNSYLVANIA:         Pittsburgh, Allentown*, Philadelphia*

SOUTH CAROLINA:       Columbia*, Greenville*

TENNESSEE:            Memphis*, Nashville*

TEXAS:                Austin, Dallas/Ft. Worth, San Antonio, El Paso*, Houston*,
                      Galveston*

UTAH:                 Salt Lake City

VIRGINIA:             Newport News*, Richmond*, Norfolk*

WASHINGTON:           Seattle/Everett, Tacoma

WASHINGTON D.C.*

*Non-AT&T Markets.

                                      -20-

<PAGE>   22

                                    EXHIBIT C

                                  SERVICE PLAN

                                  DEFINITIONS:

AT&T MARKETS: Markets where AT&T provides Service directly, as indicated on
Exhibit B.

NON AT&T MARKETS: Markets where Service is available through AT&T's intercarrier
agreements, as indicated on Exhibit B.

                                  SERVICE PLAN:

MONTHLY ACCESS FEE:

Customer will pay a Monthly Access Fee for each Number activated on AT&T's
Service. This fee is pro-rated on a daily basis for periods of less than one
month in which a Number is active. The amount of the fee varies based upon the
number of End Users active on AT&T's Service as of the end of the month. At all
levels, the first 1000 kilobytes of Service ("Included Kilobytes") in any month
are included. Unused monthly Included Kilobytes cannot be carried over to any
subsequent month. Included Kilobytes are calculated on an aggregate basis across
all End Users active on AT&T's Service as of the end of the month.

<TABLE>
<CAPTION>
        Number of Active End Users                    Monthly Fee Per End User
        --------------------------                    ------------------------
<S>                                                   <C>
               [***]                                             $[***]
               [***]                                             $[***]
               [***]                                             $[***]
               [***]                                             $[***]
               [***]                                             $[***]
</TABLE>

USAGE CHARGES:

Usage charges are assessed on a per kilobyte basis after the first 1000 in any
month and varies based upon the number of End Users active on AT&T's Service as
of the end of the month.

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                      -21-

<PAGE>   23

<TABLE>
<CAPTION>
        Number of Active End Users                  Usage Charge per Kilobyte
        --------------------------                  -------------------------
<S>                                                 <C>
                   0 - 10,000                       AT&T Markets: $[***]
                                                    Non-AT&T Markets: $[***]

               10,001-30,000                        AT&T Markets: $[***]
                                                    Non-AT&T Markets: $[***]

              30,001 - 50,000                       AT&T Markets: $[***]
                                                    Non-AT&T Markets: $[***]

              50,001 - 100,000                      AT&T Markets: $[***]
                                                    Non-AT&T Markets: $[***]

              100,001 +                             AT&T Markets: $[***]
                                                    Non-AT&T Markets: $[***]
</TABLE>

CHARGE CAP:

During the period from November 15th 1999 to April 30th 2000 the total aggregate
of usage charges and access fees shall not exceed $[***] per User per month for
the first 5000 Users. E.g.: If there are 3,000 subscribers signed up in a given
month charges for that month excluding assignment fees, shall not exceed $[***].
Additional Users beyond the first 5000 will be charged as stated in the table
above.

Customer will provide AT&T with 75 accounts, at no charge, to be used for
employee and demonstration purposes. AT&T will provide the IP addresses and
Wireless Data Units to be used with these accounts.

ASSIGNMENT FEE: A one-time fee will be charged for every new Number at the time
activated by Customer. This fee varies based upon the number of End Users active
on AT&T's Service as of the end of the month.

<TABLE>
<CAPTION>
        Number of Active End Users                        Assignment Fee
        --------------------------                        --------------
<S>                                                       <C>
                    0 - 10,000                                 $[***]
               10,001 - 30,000                                 $[***]
               30,001 - 50,000                                 $[***]
               50,001 - 100,000                                $[***]
               100,001 +                                       $[***]
</TABLE>

CANCELLATION FEE: No cancellation fee will be assessed upon deactivation of
Numbers.

BILLING GUIDELINES:

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                      -22-

<PAGE>   24

        1.      General. AT&T will bill Customer on a monthly basis for Service
                furnished under this Agreement, including regular monthly
                Service charges and usage charges for all data transmissions
                processed through the Number. Usage charges include charges on a
                per kilobyte basis for transmissions that are sent or received
                by Wireless Data Units programmed with a Number assigned to
                Customer. Usage charges may also include charges for additional
                services offered by AT&T which Customer may subscribe to at
                rates determined by AT&T from time to time.

        2.      Access Charges. Access charges are billed monthly in arrears.
                Usage charges are billed monthly in arrears. If AT&T agrees to
                provide Service features to Customer, AT&T reserves the right to
                charge a reasonable fee for adding or deleting Service features.

        3.      Measurement. The measurement of a transmission is in kilobytes.

        4.      Discounts. All volume and off peak discounts will be applied to
                Customer's Account for the current billing cycle.

        5.      Additional Charges: State surcharges may be charged to Customer
                in addition to the charges under all Rate Plans.

        6.      Loss of Registration. Registration may be "lost" (i.e.,
                involuntarily disconnected) for a variety of reasons, including
                atmospheric conditions, topography, weak batteries, system over
                capacity, movement outside a service area, and gaps in coverage
                within a service area. Loss of registration may result in
                retransmissions and additional usage charges.

MINIMUM NUMBER REQUIREMENTS: Customer shall maintain, within nine months of the
date of this Agreement, a minimum of [***] active Numbers.

FAILURE TO MEET MINIMUM NUMBER REQUIREMENTS: In the event Customer fails to
achieve the minimum Number requirements at any time after the dates set forth in
this Exhibit C, Customer shall pay to AT&T in addition to all other amounts due
the difference between Customer's actual Numbers and the required minimum
Numbers times $[***] for each month in which Customer fails to achieve such
minimum. Continued failure to meet Minimum Number Requirements shall give rise
to AT&T's right to terminate under Section 10.2

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                      -23-

<PAGE>   25

                                    EXHIBIT D

                              END USER DISCLOSURES

1. [END USER] EXPRESSLY UNDERSTANDS AND AGREES THAT IT HAS NO CONTRACTUAL
RELATIONSHIP WHATSOEVER WITH THE UNDERLYING WIRELESS SERVICE CARRIER AND THAT
[END USER] IS NOT A THIRD PARTY BENEFICIARY OF ANY AGREEMENT BETWEEN [CUSTOMER]
AND UNDERLYING CARRIER. IN ADDITION, [END USER] EXPRESSLY UNDERSTANDS AND AGREES
THAT THE UNDERLYING CARRIER SHALL HAVE NO LEGAL, EQUITABLE, OR OTHER LIABILITY
OF ANY KIND TO [END USER]. IN ANY EVENT, REGARDLESS OF THE FORM OF THE ACTION,
WHETHER FOR BREACH OF CONTRACT, WARRANTY, NEGLIGENCE, STRICT LIABILITY IN TORT
OR OTHERWISE, [END USER's] EXCLUSIVE REMEDY AND THE TOTAL LIABILITY OF THE
UNDERLYING CARRIER ARISING IN ANY WAY IN CONNECTION WITH THIS AGREEMENT, FOR ANY
CAUSE WHATSOEVER, INCLUDING BUT NOT LIMITED TO ANY FAILURE OR DISRUPTION OF
SERVICE PROVIDED HEREUNDER, IS LIMITED TO PAYMENT OF DAMAGES IN AN AMOUNT NOT TO
EXCEED THE AMOUNT PAID BY [CUSTOMER] TO [THE UNDERLYING CARRIER] FOR THE
SERVICES DURING THE TWO MONTH PERIOD PRECEDING THE DATE THE CLAIM AROSE.

2. [END USER] SHALL INDEMNIFY AND HOLD HARMLESS THE UNDERLYING WIRELESS SERVICE
CARRIER SUPPLYING SERVICES TO [CUSTOMER] AND ITS OFFICERS, EMPLOYEES, AND AGENTS
AGAINST ANY AN ALL CLAIMS, INCLUDING WITHOUT LIMITATION CLAIMS FOR LIBEL,
SLANDER, OR ANY PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, ARISING IN ANY WAY
DIRECTLY OR INDIRECTLY IN CONNECTION WITH THIS AGREEMENT OR THE USE, FAILURE TO
USE, OR INABILITY TO USE THE NUMBER EXCEPT WHERE THE CLAIMS RESULT FROM THE
UNDERLYING CARRIER'S GROSS NEGLIGENCE OR WILLFUL MISCONDUCT. THIS INDEMNITY
SHALL SURVIVE THE TERMINATION OF THE AGREEMENT.

3. [END USER] HAS NO PROPERTY RIGHT IN ANY NUMBER ASSIGNED TO IT, AND
UNDERSTANDS THAT ANY SUCH NUMBER CAN BE CHANGED FROM TIME TO TIME.

4. [END USER] UNDERSTANDS THAT [CUSTOMER] AND THE UNDERLYING CARRIER CANNOT
GUARANTY THE SECURITY OF DATA TRANSMISSIONS, AND WILL NOT BE LIABLE FOR ANY LACK
OF SECURITY RELATING TO THE USE OF THE SERVICES OR THE TRANSMISSION OF DATA.

                                      -24-<PAGE>   1

                                                                   EXHIBIT 10.10

                                SUPPLY AGREEMENT

        This Supply Agreement ("Agreement") is effective as of July 15, 1999
(the "Effective Date"), by and between NOVATEL WIRELESS, INC., a Delaware
corporation ("Novatel" or "Seller"), having its principal place of business at
9360 Towne Centre Drive, San Diego. California and OPENSKY CORPORATION, a
Delaware corporation ("OpenSky" or "Buyer"), having its principal place of
business at 471 Emerson Street, Suite 200, Palo Alto, California.

        WHEREAS, Seller is engaged in, among other things, the development and
manufacture of the Minstrel III TM wireless modem cradle ("Minstrel III") and
the Minstrel V TM wireless modem cradle ("Minstrel V"), for the Palm III and
Palm V connected organizers, respectively (the Minstrel III and the Minstrel V
are referred to herein collectively as the "Modems"):

        WHEREAS, Buyer desires to purchase certain quantities of such Modems
from Seller, and Seller is willing to supply such quantities of such Modems to
Buyer, subject to the terms and conditions of this Agreement;

        NOW, THEREFORE, in consideration of the premises and the mutual promises
and covenants set forth below, the parties agree as follows:

1. SALE AND PURCHASE OF PRODUCTS.

        1.1 Sale and Purchase. Buyer shall purchase from Seller, and Seller
shall supply to Buyer, an aggregate of 100,000 Modems pursuant to the schedule
of payment and delivery in Annex A, for an aggregate purchase price equal to
$[***], subject to any adjustments to the Mix (as described in Section 1.3) made
in accordance with Section 1.3 hereof.

        1.2 Payments. Buyer shall make payments due to Seller for Deliverable
Items either directly to Seller or to such bank as Seller may designate in
writing. Payments for Modems shall be due and payable in full, in cash, by Buyer
thirty (30) days prior to each scheduled delivery of Modems into Seller's
Distribution Facility in San Diego. California (the "Novatel Distribution
Facility"). Each delivery of specification compliant Modems in accordance with
Annex D for which a pre-payment by Buyer has been received may not be canceled.
Payments for Deliverable Items (other than Modems), shall be due and payable in
full, in cash, by Buyer within thirty (30) days following the date of shipment
to end-users on behalf of Buyer. For purposes of this Agreement, "Deliverable
Items" shall mean any item, or parts thereof, that Seller is obligated to
provide under this Agreement including but not limited to Modems, documentation,
know-how and information. Payment for shipping and configuration and activation
shall be due and payable in full, in cash, as set forth in Sections 1.8 and 2.1,
respectively.

        1.3 Prices and Mix. The Modems shall be supplied to Buyer at a price per
unit equal to $[***] for the Minstrel III and $[***] for the Minstrel V. Pricing
is based on 100,000 units to be purchased during the term of this Agreement. The
price per unit as set forth above includes the 0.6-Watt CDPD radio modem,
cradle, battery pack, power supply, CD-ROM, user documentation and Buyer
specified retail packaging. During the term of this Agreement, unless

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

<PAGE>   2

changed in accordance with this Section 1.3, the number of each type of Modem to
be purchased in each delivery and in the aggregate under this Agreement shall be
[***]% Minstrel V and [***]% Minstrel III (the "Mix"). Buyer may change the Mix
(i) by [***]% upon 30-days' advance written notice to Seller; (ii) by [***]%
upon 60-days' advance written notice to Seller or (iii) in its entirety upon
90-days' advance written notice to Seller. Buyer may change the delivery
schedule set forth on Annex A as to the total monthly quantity of Modems shipped
upon sixty (60) days prior written notice to Seller; provided, however, that (i)
any increase in the monthly quantity of Modems shall not exceed [***]% of the
monthly quantity of Modems set forth on Annex A for the relevant month; (ii) any
decrease in the monthly quantity of Modems shall not exceed [***]% of the
monthly quantity of Modems set forth on Annex A for the relevant month and (iii)
the total quantity of Modems purchased under this Agreement shall remain
unchanged. If Buyer reduces the monthly quantity of Modems during the
Exclusivity Period pursuant to the previous sentence, then notwithstanding
anything to the contrary in this Agreement, the exclusivity provided for in
Section 1.9 shall not apply with respect to the number of Modems by which such
monthly quantity of Modems was so reduced.

        1.4 Advance. The parties hereto acknowledge and agree that in order to
ensure the prompt availability of the Modems of the initial scheduled delivery
hereunder as provided in Annex A, Seller must make an initial commitment to its
suppliers of components. On the dates set forth below, Buyer shall advance an
aggregate amount of $[***] (the "Advance") to Seller in cash, against future
payments to be made by Seller on deliveries made after October 1, 1999 under
this Agreement, for the specific purpose of facilitating the procurement of
components as follows:

<TABLE>
<CAPTION>
          DATE OF BUYER'S ADVANCE            AMOUNT OF BUYER'S ADVANCE
<S>                                         <C>
              August 3, 1999                       $[***]
                                            ([***] units at $[***] per unit)

             October 15, 1999                      $[***]
                                            ([***] units at $[***] per unit)
</TABLE>

All deliveries of Modems made after October 1, 1999 pursuant to this Agreement
shall be invoiced at the actual prices provided in Section 1.2 above minus
$[***] per Modem until the Advance is fully recovered by Buyer.

        1.5 Accessories. During the Shipping Period (as defined in Section 1.8
below), Seller shall hold for Buyer 1,000 Minstrel III batteries in reserve
inventory and shall make available accessories for the Modems at such prices
listed in Annex B.

        1.6 Acceptance Criteria. The Modems shall be run through an acceptance
test prior to delivery. The acceptance test will be based on an agreed to
statistical sampling of the Modems and will demonstrate that the Modems meet all
of the Product Specifications outlined in Annex D. If there is a statistical
failure rate of greater than 1% for any Product Specifications, then every modem
shall be tested prior to acceptance by Buyer. Seller shall provide Buyer notice
of

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                       2
<PAGE>   3

when acceptance test will be performed. Buyer shall have the right to witness
each such test. Upon completion of the acceptance test, Seller shall provide
Buyer with the results of such test and Buyer shall indicate acceptance by
signing the acceptance test documentation.

        1.7 Delivery and Title. The Modems sold to Buyer shall be delivered to
the Novatel Distribution Facility in accordance to the delivery schedule set
forth in Annex A. Title and risk of loss in the Modems shall transfer to Buyer
at such time as Seller ships the Modems to an end-user on behalf of Buyer or to
a third party distributor on behalf of Buyer. Seller shall warehouse the
inventory on behalf of Buyer and ship to end-users the Modems on behalf of Buyer
from the Novatel Distribution Facility in accordance with Section 1.8 below.
Subject to Section 8 below, all Modems shipped to Buyer or to the end-users on
behalf of Buyer shall be non-returnable.

        1.8 Shipping.

                1.8.1 From the period beginning November 1, 1999 and ending
March 1, 2000 (the "Shipping Period") Seller shall make shipments FOB
Destination of the Modems to end-users on behalf of Buyer. In each case, Buyer
shall provide to Seller in writing, by electronic transmission or any other mode
of communication as set forth in Section 13.11, such information as is necessary
to complete the requested shipment, including without limitation, the address or
location of shipment, the number and type of Modem to be shipped and the type of
shipment to be utilized pursuant to Section 1.8.2 below. Seller shall arrange
for the requested shipment FOB Destination within a 24-hour period from receipt
by Seller of Buyer's shipment request pursuant to this Section 1.8.1.

                1.8.2 During the Shipment Period, Seller shall arrange, in
coordination with Buyer, for the air carrier insurance and freight from the
Novatel Distribution Facility to end-users on behalf of Buyer, and the CIF cost
shall be borne by Buyer directly. Seller shall provide three (3) shipment
options to Buyer: (i) overnight delivery; (ii) 2-day delivery or (iii) ground
delivery; and for which Buyer shall pay Seller, in cash, fees for shipment of
the Modems pursuant to this Section 1.8.2. As additional shipping options and
volume discounts become available, the fees for shipment paid by Buyer to Seller
may be agreed upon on a case by case basis by Buyer and Seller. Seller shall
deliver monthly invoices to Buyer for the costs and fees in connection with the
shipment of the Modems made to end-users on behalf of Buyer. In addition to such
other amounts as may be due hereunder, Buyer shall pay Seller in full, in cash,
for Seller's costs and fees for such shipments within thirty (30) days following
the date of delivery of such invoice to Buyer pursuant to this Section 1.8.2.

        1.9 Exclusivity. The Minstrel V shall be made available for sale and
purchase exclusively to Buyer for the Exclusivity Period. The "Exclusivity
Period" means the four-month period commencing as of the later of (i) such date
Seller has delivered [***] Minstrel V units in accordance with this Agreement
on account of Buyer to the Novatel Distribution Facility or (ii) November 30,
1999. In the event that Seller's delivery of field trial Minstrel V Modems is
not made prior to September 30, 1999 or Seller retrofits Modems pursuant to
Section 1.17 or Section 5 hereof, then (i) the initial delivery of Modems into
the Novatel Distribution Facility shall be due on December 31, 1999; (ii) each
subsequent delivery date on Annex A shall be adjusted accordingly; and (iii) the
Exclusivity Period will begin on such date Seller has delivered [***] Minstrel V
units in accordance with this Agreement to the Novatel Distribution Facility.

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                       3
<PAGE>   4

        1.10 Warranties. Acceptance of a Modem shall not relieve Seller from its
obligations thereunder with respect to warranties under Section 8 below.

        1.11 Title; Risk of Loss. Title to Deliverable Items covered by this
Agreement shall pass to Buyer and risk of loss of or damage to Deliverable Items
shall be assumed by Buyer, at such time Seller ships the Deliverable Items to an
end-user on behalf of Buyer or to a third party distributor on behalf of Buyer.

        1.12 Taxes. The prices of all Modems and Deliverable Items hereunder
include all taxes, duties and excises which are directly imposed on the Modems
or Deliverable Items. Notwithstanding the foregoing, Buyer shall bear the
responsibility for any taxes or duties imposed on Deliverable Items in any other
country or state of destination, including without limitation, taxes imposed on
the sale by Buyer of a product that includes Seller products.

        1.13 Adverse Results: Government Action. Each party agrees to promptly
notify the other party of any adverse or unexpected results or any actual or
potential government action relevant to a Modem of which it becomes aware.

        1.14 Invoices; Errors. Invoices shall be submitted by Seller in
duplicate (original and one copy) for each delivery of Deliverable Items (other
than Modems) and will enclose as an integral part thereof documentary proof of
delivery of such Deliverable Items, according to commercially accepted standards
for exports.

        1.15 Additional Supply. Beginning after completion of delivery of [***]
Modems and for a period of one (1) year, thereafter, Buyer shall have the first
option of available allocation to purchase the Modems. The first option of
available allocation granted to Buyer under this Section 1.15 shall be on such
terms and conditions and at such price as mutually agreed upon between the
parties hereto or as then in effect pursuant to future Modem supply agreements
entered into between Buyer and Seller but at no greater price than Seller would
offer to any other similar buyer for the same Modem on similar volume and other
terms.

        1.16 Schedule. If Seller fails to deliver the Modems to the Novatel
Distribution Facility as scheduled in Annex A and Buyer waives the delay, Annex
A shall be adjusted by changing the dates in Annex A by an equivalent number of
days. For example, a thirty (30) day delay in delivery will cause a thirty (30)
day delay in every subsequent delivery requirement pursuant to Annex A. If
Seller is only able to deliver a portion of the Modems as scheduled, then the
remaining portion shall be delivered fifteen (15) days after the final delivery
pursuant to Annex A. Any prepayment in accordance with Section 1.2 for
undelivered Modems shall be applied to the prepayment for the next scheduled
delivery of Modems. In the event the Modems are not delivered for field trial by
September 30, 1999 pursuant to Section 1.17 below then the delivery schedule on
Annex A will be adjusted so that the initial delivery shall be due on December
31, 1999 and each subsequent delivery on Annex A shall be adjusted accordingly.

        1.17 Field Trials. Seller will deliver Modems for Buyer to conduct field
trials on or prior to September 30, 1999. If the Modems have mechanical or
electrical failures in excess of 4% during Buyer field trial then Seller shall
immediately stop delivery of Modems to the Novatel

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                       4
<PAGE>   5

Distribution Facility Seller shall make the necessary changes to rectify the
identified failures and all previously delivered Modems shall be retrofitted to
meet the specification configuration.

2. CONFIGURATION AND ACTIVATION: TRADEMARKS.

        2.1 Configuration and Activation.

                2.1.1 Seller shall configure and activate each Modem on behalf
of Buyer. Buyer shall provide shipping, configuration and activation
instructions in writing, by electronic transmission or any other mode of
communication as set forth in Section 13.11, to Seller for each Modem to be
shipped on behalf of Buyer. In addition to such other amounts as may be due
hereunder, Buyer shall pay Seller a fee equal to $[***] for each Modem unit
activated. Seller shall deliver a monthly invoices to Buyer stating the
aggregate activation fees due and payable in connection with the activation of
the units. Buyer shall pay such fee in full, in cash, within thirty (30) days
following the delivery date of such invoice to Buyer.

                2.1.2 The parties agree that all Modem units shipped to
end-users on behalf of Buyer shall be activated by Seller in accordance with
this Section 2 and in consideration of the fee set forth in Section 2.1.1
hereof. In activating the Modems, Seller shall undertake the following steps:

                        * Unpack Minstrel Cradle
                        * Plug into AC power source
                        * Attach pre-configured Palm test unit
                        * Run "Modem Manager" software
                        * Program Modem parameters and confirm registration
                        * Send Test Packet
                        * Repackage Minstrel in retain box, including
                          activation/IP documentation

                2.1.3 Each Modem shall be shipped to an end-user on behalf of
Buyer with a joint branding configuration consisting of the word "Novatel
Wireless" on the back of the Modem and such name as may be designated by Buyer
in writing, by electronic transmission or any other mode of communication as set
forth in Section 13.11 on the front of the Modem. Such branding configuration
shall extend to the Modem, user documentation and retail packaging. All Modems
will be packaged according to standards of trade generally applicable to similar
products shipped on a global basis.

        2.2 Seller's Trademarks.

                2.2.1 Buyer shall not use the trademark "Novatel" or "Novatel
Wireless" or any other trademark owned or used by Seller or any mark confusingly
similar thereto without the prior written consent of Seller in each.

                2.2.2 Buyer acknowledges Seller's sole ownership and exclusive
right, title and interest in and to the use of each of its trademarks, and that
any use of any of the trademarks of Seller will inure solely to the benefit of
Seller. Buyer shall not at any time, either during the

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                       5
<PAGE>   6

term hereof or at any time thereafter, directly contest, or aid others in
contesting, or do anything which might impair the validity of, any or all of
Seller's trademarks or the exclusive ownership thereof by Seller. Buyer shall
not acquire any right to or under any of Seller's trademarks. If any such rights
should become vested in Buyer by operation of law or otherwise, Buyer agrees it
will immediately assign any and all such rights to Seller. Nothing contained
herein in any way limit Seller's rights under its parents or licensing
agreements nor grant Buyer any rights under such patents or licensing
agreements.

        2.3 Buyer's Trademarks.

                2.3.1 Seller shall use the trademarks of Buyer only on or in
connection with the terms of Section 2.1 hereof and shall not use any marks
confusingly similar to Buyer's trademarks on any other goods.

                2.3.2 Seller acknowledges Buyer's sole ownership and exclusive
right, title and interest in and to the use of each of its trademarks, and that
any use of any of the trademarks of Buyer will inure solely to the benefit of
Buyer. Seller shall not at any time, either during the term hereof or at any
time thereafter, directly contest, or aid others in contesting, or do anything
which might impair the validity of, any or all of Buyer's trademarks or the
exclusive ownership thereof by Buyer. Seller shall not acquire any right to or
under any of Buyer's trademarks. If any such rights should become vested in
Seller by operation of law or otherwise, Seller agrees it will immediately
assign any and all such rights to Buyer. Nothing contained herein in any way
limit Buyer's rights under its patents or licensing agreements nor grant Seller
any rights under such patents or licensing agreements.

3. KNOW-HOW AND SUPPORT.

        Seller shall provide Level II and Level III Technical Support (as
described in Annex C), and training to Buyer's designated service technicians to
enable Buyer to provide Level I Support and engineering support at Buyer's
facilities to enable Buyer to support the Modems, including the details of modem
functionality and design required for detection and correction of bugs or
failures. The parties hereto acknowledge and agree that Seller shall not provide
direct end-user support to any end-user on its own behalf or on behalf of Buyer
(Level I Technical Support). Seller will provide technical support during the
term of this Agreement in accordance with the terms of this Agreement for so
long as Buyer does not request any change in Seller's specifications of the
Modems as set forth in Annex D (the "Product Specifications").

4. AUDIT

        During the term of this Agreement, Seller shall maintain separate,
complete and accurate accounting records, in a form in accordance with generally
accepted accounting principles, to substantiate Seller's invoices hereunder.
Buyer, or any other person designated by it, reserves the right during the term
of this Agreement to audit and review, with reasonable notice to Seller,
Seller's books and records pertaining to such invoices to substantiate the
invoices delivered in connection with this Agreement. Seller shall preserve such
books and records for this purpose for a period of seven (7) years from the
receipt of last payment from Buyer. Buyer shall have the right to visit the
Novatel Distribution Facility to take a physical inventory of Modems that have

                                       6
<PAGE>   7

been delivered in accordance with Section 1.7.

5. REPRESENTATION AND WARRANTY

        Seller represents and warrants that no Federal Trade Commission
certification of CDPD carrier certification is required for the Modems. If
either certification becomes necessary for the sale of the Modems, Seller shall
immediately stop delivery of the Modems to the Novatel Distribution Facility.
Seller shall make the necessary changes to certify the Modems and all previously
delivered Modems shall be retrofitted to meet the certified configuration.

6. INSURANCE

        Seller shall maintain sufficient general liability insurance for the
Novatel Distribution Facility to cover the Modems stored at the site.

7. TERM; TERMINATION, RIGHTS AND OBLIGATIONS UPON TERMINATION.

        7.1 Except as otherwise provided for herein, the term of this Agreement
shall be for the period commencing on the Effective Date and ending on April 1,
2000, unless terminated earlier by either party pursuant to the provisions of
this Section 7 or extended by mutual written agreement of the parties.

        7.2 Notwithstanding the foregoing, the following provisions shall
continue in effect after termination of this Agreement in accordance with their
terms:

                (a) All payment provisions, and any payment due at the time of
termination shall be paid in accordance with the terms of this Agreement.

                (b) All warranties specified in the Agreement.

                (c) All Patent Indemnity obligations.

                (d) Section 1.14 (Additional Supply).

                (e) Sections 2.2 and 2.3 (Trademarks).

                (f) Section 7.6 (Commitment Termination Event).

                (g) Section 11.3 (Spare Parts).

                (h) Sections 13.1 and 13.2 (Confidentiality and Advertising).

                (i) Section 13.3 (Confidential Information).

                (j) Section 13.8 (Applicable Law), which shall govern any
dispute between the parties under the Agreement that may subsequently arise.

                                       7
<PAGE>   8

        7.3 Buyer's Right to Terminate. Buyer shall have the right, by providing
Seller with thirty (30) days prior written notice, to terminate this Agreement
upon the occurrence of any of the following events, any one of which shall be
considered a "Seller Default:"

                (a) Seller discontinues the Modems;

                (b) Seller is adjudged bankrupt;

                (c) Seller files a voluntary petition in bankruptcy or
liquidation or for the appointment of a receiver;

                (d) Filing of an involuntary petition to have Seller declared
bankrupt, or subject to receivership, provided that such petition is not vacated
or set aside within ninety (90) days from the date of filing;

                (e) The execution by Seller of any assignment for the benefit of
creditors; or

                (f) Seller breaches any material provision of this Agreement and
fails to cure such material breach within thirty (30) days from receipt of
written notice describing the breach.

        7.4 Seller's Right to Terminate. Seller shall have the right, by
providing Buyer with written notice, to immediately terminate this Agreement
upon the occurrence of any of the following events, any one of which shall be
considered a "Buyer Default:"

                (a) Buyer fails to make payments as provided in this Agreement,
unless such failure is cured within thirty (30) days from receipt of written
demand for such payment. Any late payments shall bear interest at the annual
rate of LIBOR plus 2%;

                (b) Buyer is adjudged bankrupt;

                (c) Buyer files a voluntary petition in bankruptcy or
liquidation or for the appointment of a receiver;

                (d) Filing of an involuntary petition to have Buyer declared
bankrupt, or subject to receivership, provided that such petition is not vacated
or set aside within ninety (90) days from the date of filing;

                (e) The execution by Buyer of any assignment for the benefit of
creditors; or

                (f) Buyer breaches any material provision of this Agreement and
fails to cure such material breach within thirty (30) days from receipt of
written notice describing the breach.

                                       8
<PAGE>   9

        7.5 Remedy Upon Seller Default. In the event that this Agreement is
terminated pursuant to Section 7.3 above, Buyer shall have the right to exercise
any and all rights surviving such termination pursuant to Section 7.2.

        7.6 Commitment Termination Event. In the event of a Commitment
Termination Event, Buyer shall, as soon as practicable and in no event later
than five (5) days after the occurrence of such Commitment Termination Event,
pay Seller, in cash an amount equal to twenty percent (20%) of the aggregate
amount which otherwise would have been owed to Seller under this Agreement had
the Commitment Termination Event not occurred and Seller fully performed its
obligations under this Agreement less any pre-payment made for undelivered
Modems in accordance with Section 1.2. "Commitment Termination Event" means (i)
the failure by Buyer to purchase Modems in the amounts set forth in Section 1.1
("Sale and Purchase") hereof pursuant to the schedule of payment and delivery
set forth in Annex A (giving effect to any adjustments made in accordance with
Section 1.3 hereof); (ii) termination of this Agreement by Buyer for any reason
whatsoever other than pursuant to a breach by Seller of the provisions of
Section 8.1 hereof (Product Warranty) or failure by Seller to make the scheduled
deliveries in accordance with Section 1.7 hereof; (iii) any breach by Buyer of
any representation, covenant or agreement on the part of Buyer set forth in this
Agreement or (iv) Buyer's use of another CDPD modem vendor for the Palm III and
Palm V during the term of this Agreement.

8. PRODUCT WARRANTY.

        8.1 Product Warranty. The following Sections 8.1 through 8.6 refer only
to Product Warranty.

                (a) Seller warrants (i) that all Modems, including components
thereof, to be delivered hereunder, will conform to the Product Specifications,
be free from defects in material and workmanship and (ii) that the "Modem
Manager" software installed pursuant to Section 2.1 hereof shall be free from
errors which materially affect performance. The foregoing warranty is given
provided Buyer gives written notice of any defect, deficiency or non-conformance
of any Modem, or parts thereof, within: (i) twelve (12) months from the shipment
date to the end-user, or (ii) fifteen (15) months from the date the Modems are
delivered to Buyer at the Novatel Distribution Facility (the "Warranty Period").
Seller shall, at no cost to Buyer, and within the "Turn-Around Time" as defined
in Section 8.2(a) below, repair or furnish replacements for all such defective,
deficient or non-conforming items or parts thereof; provided, however, the
Modems have been maintained in accordance with Seller's specifications and have
not been modified by any party other than Seller except as expressly permitted
by Seller in writing.

                (b) The foregoing warranties do not extend to:

                        (i) defects, errors or nonconformities in a Modem due to
accident, abuse, misuse or negligent use of such Modem or use in other than a
normal and customary manner, environmental conditions not conforming to Seller's
specifications, or failure to follow prescribed operating maintenance
procedures;

                                       9
<PAGE>   10

                        (ii) defects, errors or nonconformities in the Modem due
to modifications, alterations, additions or changes in the Modem not made or
authorized to be made by Seller in writing;

                        (iii) normal wear and tear; or

                        (iv) damage caused by force of nature or act of any
third party.

        8.2 Turn-Around Time.

                (a) "Turn-Around Time" for the purposes of this Section 8 means
fifteen (15) days from the date on which such defective item, or defective or
non-conforming part thereof, is furnished to Seller, for repair or replacement
until the date on which such replaced or repaired item is returned to Buyer.

                (b) Seller shall bear air shipment costs of the deficient,
repaired or replaced item as well as the risk or loss or damage to the item or
its replacement throughout the period between the shipment of the defective item
and the receipt of the repaired or replaced item. Repaired or replaced items
shall be subject to the warranty provided on the original Modem only (the time
during which Seller repairs or replaces the item shall not be considered as part
of the Warranty Period), in accordance with this Section 8. Notwithstanding the
foregoing, Buyer shall bear all expenses if no fault on the part of Seller was
found in the items returned for repair or replacement.

        8.3 Extended Warranty. In the event Buyer elects to offer an extended
warranty, Buyer may, up to one (1) year after an order is received from an
end-user, extend the Warranty Period at a cost of $[***] per Modem per year.
Discounts in the cost of such extension of warranty may be negotiated between
Seller and Buyer, based on the number of the Modems on which Buyer elects to
extend the Warranty Period.

        8.4 Inspection; Acceptance. This warranty shall survive inspection,
acceptance or payments by Buyer and is provided for the sole and exclusive
benefit of Buyer and shall not extend to any third party, including without
limitation, any reseller or end-user.

        8.5 Exclusive Remedy. The warranty granted in this Section 8 sets forth
Buyer's sole and exclusive remedy and Seller's sole and exclusive liability for
any claim of warranty for any product delivered by Seller.

        8.6 No Authority. Buyer acknowledges that it is not authorized to make
any warranty or representation on behalf of Seller or its suppliers regarding
the Modems, whether express or implied, other than the warranty terms set forth
in this Section 8.

        8.7 No Other Warranty. THE WARRANTY MADE UNDER THIS SECTION 8 IS
EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING,
WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

                                       10
<PAGE>   11

9. PATENT INDEMNITY

        9.1 Patent Indemnity. Seller shall, at its sole cost and expense,
indemnify, defend and hold Buyer harmless from and against any claims, demands,
liability or suit, including costs and expenses, for or by reason of any actual
or alleged infringement of any third party patent, trademark or copyright
resulting from the design, development, manufacture, use, sale or disposal of
any Modem or Deliverable Items furnished hereunder. Buyer shall promptly notify
Seller in writing of any such infringement claim after Buyer becomes aware of
such claim, and shall provide Seller with such assistance and cooperation as
Seller may reasonably request from time to time in connection with the defense
thereof. In the event Buyer determines that Seller is unable or unwilling to
defend the claim, Buyer may assume control of the defense of any infringement
claim; provided that under such circumstances Buyer shall bear all costs of such
defense (but not of any consequent judgment or liability). If any settlement
requires an affirmative obligation of, results in any ongoing liability to, or
prejudices or detrimentally impacts in any way, Buyer, then such settlement
shall require Buyer's written consent.

        9.2 Right to Substitute. Should Buyer be prevented as a result of such
claims, actions or suits regarding infringement, from utilizing the Modems or
Deliverable Items in question, or if Seller believes such a claim is likely,
then Seller shall, at Seller's expense, either substitute an equivalent
non-infringing item, or modify the item so that same no longer infringes but
remains equivalent, or obtain (at its own expense) for Buyer the right to
continue use of the item in accordance with the terms of this Agreement.

        9.3 Procedure. Seller's obligation to indemnify will be subject to the
following terms and conditions:

                (a) The obligation will arise only if Seller receives prompt
written notice of the infringement claim.

                (b) The obligation will not cover any claim that the Modems
infringe any third party's rights only as used in combination with any software
or hardware not supplied by Seller, if that claim could have been avoided by the
use of the Modems in combination with equivalent other available software or
hardware.

10. LIMITATION OF LIABILITY.

        SELLER SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL,
INDIRECT OR PUNITIVE DAMAGES (INCLUDING LOST REVENUES OR PROFITS) OF ANY KIND
DUE TO ANY CAUSE, REGARDLESS OF WHETHER SELLER HAS BEEN ADVISED OR IS AWARE OF
THE POSSIBILITY OF SUCH DAMAGES.

11. POST WARRANTY OBLIGATIONS.

        11.1 Support. Seller agrees that for the term of this Agreement, plus
the Warranty Period, it will retain a staff of technical personnel in connection
with the design, manufacture and trouble-shooting of the Modems and Deliverable
Items supplied under this Agreement. This staff will be available to render
technical assistance to Buyer upon Buyer's reasonable request

                                       11
<PAGE>   12

regarding the Modems or a Deliverable Item and will provide such assistance as
may be reasonably required to support systems integration, system debug, basic
parameter changes in the Modems, modification of the Modems, upgrades in the
Modems, and customer and production support in accordance with the provisions of
Section 6.

        11.2 Repair. During the term of this Agreement, in the event that Buyer
requires repair of the Modems, or any part thereof, after the date of completion
of Seller's warranty obligations under this Agreement. Seller will perform such
repairs on terms at and prices in accordance with its standard support and
maintenance fees, or at a fair and reasonable prices if standard fees have not
been set.

        11.3 Spare Parts. Seller undertakes, for a period of five years after
the completion Seller's warranty obligations under this Agreement, to supply
Buyer with spare parts for the Modems and the Deliverable Items as Buyer may
reasonably request from time to time, at prices that are fair and reasonable,
considering prevailing market prices at the time said items are ordered.

12. FORCE MAJEURE.

        12.1 Events of Force Majeure. Neither party shall be liable for a
default or delay in the performance under this Agreement if and to the extent
such default or delay is caused, directly or indirectly, by (i) fire, flood,
natural disturbances or other acts of God; (ii) any outbreak or escalation of
hostilities, war, civil commotion, riot or insurrection; (iii) any act or
omission of the other party or any governmental authority or (iv) any other
similar causes beyond the control of such party that arise without the fault or
negligence of such party. Any delay resulting from such events shall be referred
to herein as a "Force Majeure," shall not constitute a default by such party
under this Agreement and shall entitle the delayed party to a corresponding
extension of its delayed obligation. The party whose performance will be delayed
by such events will use its best efforts to notify the other party within three
(3) days after delayed party becomes aware of such event, as well as the
cessation thereof.

        12.2 Subcontractor's Default. Any delays in performance by Seller's
subcontractors or suppliers shall be deemed excusable delays with respect to
Seller only if (i) such subcontractor's non-performance is caused by Force
Majeure and (ii) Seller could not have obtained the supplies or services of such
subcontractor from other sources in sufficient time and on customary terms to
prevent interruption of Seller's performance of this Agreement.

        12.3 Termination.

                (a) If Force Majeure results in a delay to make any scheduled
delivery under this Agreement by more than sixty (60) days, Buyer may terminate
this Agreement in whole or in part and such termination shall not be deemed a
breach of this Agreement.

                (b) If Buyer does not terminate within such sixty (60) day
period, and the Force Majeure prevails for further forty-five (45) days, Buyer
may terminate this Agreement, but it shall have no right to claim damages from
Seller for breach of the Agreement. The foregoing expresses Buyer's sole remedy
and Seller's sole liability for such termination resulting from Force Majeure.

                                       12
<PAGE>   13

13. MISCELLANEOUS.

        13.1 Confidentiality of Agreement; Permitted Disclosures. Throughout the
term of this Agreement, each party agrees that the terms of this Agreement shall
be kept confidential. No disclosure of the identity of Buyer's customers or
end-users or other information concerning this Agreement shall be released by
Seller without the prior written consent of Buyer except (i) in Seller's or
Buyer's communication with its respective shareholders, investors or potential
investors, and (ii) as to such advertising or other marketing in which Seller
may engage in the ordinary course of business.

        13.2 Required Disclosures; Advertising. Notwithstanding Section 13.1
above:

                (a) Each party may divulge information hereunder as is
reasonably required for the performance of the Agreement or as is required by
law; and

                (b) Each party shall have the right to list the other party as a
customer or supplier (as the case may be) in its advertising material.

        13.3 Confidential Information.

                (a) In performance of this Agreement, it may be necessary or
desirable for either party to disclose to the other certain business and/or
technical information which the disclosing party regards as proprietary and
confidential (the "Confidential Information"). Any Confidential Information
disclosed shall be reduced to writing and provided to the other party within
twenty (20) days after it was first disclosed. Each of the parties hereto agree
that it shall (i) not make use of or disclose the Confidential Information for
any purpose whatsoever at any time, other than for the purposes of this
Agreement and (ii) limit access to the Confidential Information of the other
party to its employees who shall be advised of and agree to be subject to the
terms of this Section 13.3.

                (b) Nothing herein shall be construed as granting to either
party, by implication, estoppel or otherwise, any right, title or interest in,
or any license under, any patent or Confidential Information.

                (c) Items shall not be considered Confidential Information if
such information was (i) available to the public other than by a breach of an
agreement with the disclosing party; (ii) rightfully received from a third party
not in breach of any obligation of confidentiality; (iii) independently
developed by one party without access to the Confidential Information of the
other; (iv) known to the recipient at the time of disclosure; or (v) produced in
compliance with applicable law or a court order, provided that other party is
given reasonable notice of such law or order and an opportunity to attempt to
preclude or limit such production.

        13.4 Severability. If any provision of this Agreement shall be held
illegal or unenforceable, that provision shall be limited or eliminated to the
minimum extent necessary so that this Agreement shall otherwise remain in full
force and effect and enforceable.

        13.5 Assignment. Neither Seller nor Buyer may assign this Agreement in
whole or in part, or any rights hereunder without the prior written consent of
the other, except to (i) a wholly-

                                       13
<PAGE>   14

owned subsidiary of such party, (ii) a successor in interest of all or
substantially all of such party's assets or business or (iii) a bank trust
company or other financial institution for money due or to become due under this
Agreement. In the event of any assignment, the assigning party shall promptly
supply the other party with two (2) copies of such assignment and, in the
instance of an assignment pursuant to this Section 13.5, shall indicate on each
invoice to whom payment is to be made. In the event of any assignment pursuant
to this Section 13.5, the assigning party also shall provide a written guarantee
by such party of the obligations assigned to such party's subsidiary.

        13.6 Relations of the Parties. Nothing in this Agreement shall be
construed as creating relationship of principal and agent or of employer and
employee between the parties. Furthermore, nothing in this Agreement is intended
to constitute, create, give effect to or otherwise contemplate a joint venture,
partnership or formal business entity of any kind. The rights and obligations of
the parties with respect to this Agreement shall not be construed as providing
for sharing of profits or losses arising out of the effort of either of the
parties. The parties shall not incur any liability on behalf of the other.

        13.7 Waiver. No waiver by either Seller or Buyer of any breach of this
Agreement shall be held to be a waiver of any other subsequent breach. No waiver
or time extension given by either Seller or Buyer shall have effect unless made
expressly and in writing.

        13.8 Applicable Law. This Agreement and all matters regarding the
interpretation and/or enforcement hereof, shall be governed exclusively by the
law of the State of California without reference to its choice of law rules.

        13.9 Arbitration. Any dispute arising out of or in connection with this
Agreement, including any question regarding its breach, validity or termination,
or the transactions contemplated hereby, including any dispute based in whole or
in part on tort or other non-contractual principles of law, shall be fully and
finally resolved and settled by arbitration under the Rules of the American
Arbitration Association for Commercial Disputes (the "Rules") (as modified by
this Section 13.9). The number of arbitrators shall be one (1) if all parties to
the dispute agree on the arbitrator. If there is a disagreement on selection of
a sole arbitrator, the number of arbitrators then shall be three (3), with the
arbitrators to be appointed in accordance with the Rules from a panel of
arbitrators in San Diego, California. The place of arbitration shall be San
Diego, California or such other place as the parties to the dispute shall
mutually agree upon in writing. The arbitration proceedings shall state the
reasons for the award. Judgment upon the award rendered by the arbitrator or
arbitrators may be entered in any court having jurisdiction thereof, and shall
be binding on the parties hereto. The costs of arbitration, including reasonable
legal fees and costs, shall be borne by either or both of the parties in
whatever proportion as the arbitrator or arbitrators may award. This Section
13.9 shall not apply to actions seeking enforcement of this Agreement to
arbitrate or to enforce Section 2.2 ("Seller's Trademarks"), Section 2.3
("Buyer's Trademarks"), Section 13.1 ("Confidentiality") or Section 13.3
("Confidential Information") hereof or with respect to any request for
provisional or interim relief brought prior to the appointment of an arbitrator.

        The dispute resolution proceedings contemplated by this provision shall
be as confidential and private as permitted by law. To that end, the parties
shall not disclose the

                                       14
<PAGE>   15

existence, content or results of any claims hereunder or proceedings conducted
in accordance with this provision, and materials submitted in connection with
such proceedings shall not be admissible in any other proceeding; provided,
however, that this confidentiality provision shall not prevent a petition to
vacate or enforce an arbitration award, and shall not bar disclosures required
by law. The parties hereto agree that any decision or award resulting from
proceedings in accordance with this dispute resolution provision shall have no
preclusive effect in any other matter involving third parties.

        13.10 Entire Agreement. This Agreement constitutes the entire agreement
between the parties, supersedes and cancels any previous understandings or
agreements between all the parties relating to the provisions hereof, and
expresses the complete and final understanding of the parties in respect
thereto. This Agreement may not be changed, modified, amended or supplemented
except by a written instrument signed by the parties.

        13.11 Notices. Any notice contemplated by or made pursuant to this
Agreement shall be in writing and shall be deemed delivered on the date of
delivery if delivered personally or by commercial overnight courier with
tracking capabilities or by fax, or five (5) days after mailing if placed in the
mail, postage prepaid, registered or certified mail, return receipt requested,
addressed to Buyer or Seller (as the case may be) as follows:

                     Seller:        Novatel Wireless; Inc.
                                    9360 Towne Centre Drive
                                    Suite 110
                                    San Diego, CA 92121
                                    Attn: Chief Executive Officer
                                    Fax: (858) 784-0626

                     Buyer:         OpenSky Corporation
                                    471 Emerson Street, Suite 200
                                    Palo Alto, CA 94301
                                    Attn: Chief Executive Officer
                                    Fax: (650) 561-9968

or such other address as each party may designate for itself by notice given in
accordance with this Section 13.11.

        13.12 Headings. The headings in this Agreement are for convenience only
and shall not be regarded in the interpretation hereof.

                            [Signature Page Follows]

                                       15
<PAGE>   16

        IN WITNESS WHEREOF, the parties hereto have executed this Agreement to
be effective as of the Effective Date written above.

                                            SELLER: NOVATEL WIRELESS, INC.

                                            By: /s/ Bruce A. Gray
                                               ---------------------------------
                                            Name: Bruce A. Gray
                                            Title: Vice President, Marketing
                                                   and Sales

                                            BUYER: OPENSKY CORPORATION

                                            By: /s/ Michael D. Dolbec
                                               ---------------------------------
                                               Name: MICHAEL D. DOLBEC
                                               Title: SR VP BUSINESS DEVELOPMENT

                                       16

<PAGE>   17

                                    ANNEX A

                        SCHEDULE OF PAYMENT AND DELIVERY

<TABLE>
<S>                           <C>            <C>            <C>            <C>            <C>
-----------------------------------------------------------------------------------------------------
Delivery Schedule             Nov. 1-15,     Nov. 16-30,    Dec. 1-15,     Dec. 16-31,    Jan. 1-15,
                                 1999           1999           1999           1999           2000
-----------------------------------------------------------------------------------------------------
Minstrel III                     1000           1000           1500           1500           2000
-----------------------------------------------------------------------------------------------------
Minstrel V                       4000           4000           6000           6000           8000
-----------------------------------------------------------------------------------------------------
Total Units                      5000           5000           7500           7500          10000
-----------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------
Payment Schedule**              Oct. 1,        Oct. 15,       Nov. 1,        Nov. 15,       Dec. 1,
                                 1999            1999          1999            1999          1999
-----------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------
Delivery Schedule             Jan. 16-31,    Feb. 1-15,     Feb. 16-29,    Mar. 1-15,     Mar. 16-31,
                                 1999           2000           2000           2000           2000
-----------------------------------------------------------------------------------------------------
Minstrel III                     2000           2500           2500           3000           3000
-----------------------------------------------------------------------------------------------------
Minstrel V                       8000          10000          10000          12000          12000
-----------------------------------------------------------------------------------------------------
Total Units                     10000          12500          12500          15000          15000
-----------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------------------------------
Payment Schedule**             Dec. 15,        Jan. 1,       Jan. 15,       Feb. 15,        Mar. 1,
                                 1999          2000            2000           2000           2000
-----------------------------------------------------------------------------------------------------
</TABLE>

** Buyer shall pre-pay in full for any forecasted bi-monthly quantity 30 days
prior to delivery into the Novatel Distribution Center in San Diego California
subject to Sections 1.2 and 1.4 of this Agreement.

<PAGE>   18

                                     ANNEX B

                                ACCESSORY PRICING

<TABLE>
<CAPTION>
                                   OPENSKY COST**           MSRP
                                   --------------          ------
        <S>                        <C>                     <C>
        BATTERY PACK                  $[***]               $[***]

        AC ADAPTOR                    $[***]               $[***]

        CAR ADAPTOR                   $[***]               $[***]

        STYLUS 3 PACK                 $[***]               $[***]
</TABLE>

** The prices offered to OpenSky Corporation with respect to accessories, are
based on volume commitments of [***] units per accessory. Pricing will be
negotiated if higher volumes are committed.

[***] Confidential treatment has been requested for the bracketed portions. The
confidential redacted portion has been omitted and filed separately with the
Securities and Exchange Commission.

<PAGE>   19

                                     ANNEX C

                                TECHNICAL SUPPORT

Technical Support for the Minstrel III and Minstrel V products delivered to
OpenSky customers will be managed via a three-tier Technical Support
infrastructure and process as follows:

LEVEL I TECHNICAL SUPPORT

        Level I Technical Support will be provided by OpenSky to their direct
        and indirect customers. Level I Support is defined as calls* originating
        from OpenSky customers, resellers or distributors regarding Palm
        Products, OpenSky Service, Wireless Service Providers, Minstrel III or
        Minstrel V products including but not limited to pre and post sale
        inquiries concerning the basic operation of the hardware and software,
        functionality, interoperability and capabilities of those products and
        services.

        For calls regarding the Minstrel III and Minstrel V products, OpenSky
        will make every attempt to answer customer questions and resolve issues
        using available tools, documentation, test equipment and other materials
        used to support the Minstrel III and Minstrel V products (see training
        section below). If the customer question/issue regarding the Minstrel
        III or Minstrel V product cannot be resolved by OpenSky support
        personnel to the customers' satisfaction, the issue will be forwarded to
        Novatel Wireless Level II Technical Support for further investigation
        and resolution.

        *Calls include phone calls, e-mail, web-based inquiries, faxes and
        letters.

LEVEL II TECHNICAL SUPPORT

        Level II Technical Support will be provided by Novatel Wireless support
        staff directly to OpenSky Level I Support personnel to assist in the
        resolution of open customer issues that have not been resolved to the
        satisfaction of OpenSky customers during a Level I Support call. OpenSky
        will have direct access to designated support staff within the Novatel
        Wireless support organization for this purpose. A direct line of
        communication between the two organizations will be established and
        Novatel Wireless support technicians will be available during normal
        OpenSky technical support operation hours to assist in resolution of
        customer problems. Novatel Wireless support engineering will work
        directly with OpenSky support staff to resolve issues and answer
        questions, this may require OpenSky support staff to gather additional
        information and provide system information or test results back to
        Novatel support staff to aid in the definition and resolution of the
        problem. It will be OpenSky support staff's responsibility to
        communicate directly with the end-user customer. Problems that are not
        resolved within three business days or problems that are flagged as
        sensitive/mission critical will be escalated to Level III Technical
        Support for final resolution.

LEVEL III TECHNICAL SUPPORT (ESCALATION)

        Level III Technical Support will be provided by the Novatel Wireless
        support and system engineering staff to resolve issues that cannot be
        satisfactorily resolved by Level I and Level II Support personnel. Level
        III Technical Support will handle all OpenSky product escalations issues
        including unresolved support calls and will work directly with Novatel
        Wireless engineering staff to resolve those issues.

TECHNICAL SUPPORT TRAINING

        Technical Support training and documentation for the Minstrel III and
        Minstrel V will be provided to OpenSky Level I Support staff by Novatel
        Wireless. OpenSky support staff will receive training on the general
        use, functionality, operation and compatibility of the Minstrel III and
        Minstrel V products. In addition, all support related documentation,
        training materials, notes, FAQ's, and web based support materials will
        be made available to OpenSky for their use in supporting these products.

<PAGE>   20

                       FIRST AMENDMENT TO SUPPLY AGREEMENT

        This First Amendment to Supply Agreement (this "Amendment") is made as
of October ___, 1999 by and among Novatel Wireless, Inc., a Delaware corporation
("Novatel") and OpenSky Corporation, a Delaware corporation ("OpenSky").

        WHEREAS, Novatel and OpenSky entered into that certain Supply Agreement,
dated and effective as of August 12, 1999 (the "Supply Agreement"); and

        WHEREAS, pursuant to Section 13.10 of the Supply Agreement, Novatel and
OpenSky desire to amend certain terms and provisions of the Supply Agreement;

        NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the parties hereto agree as follows (all capitalized
terms not otherwise defined herein shall have the meanings therefor set forth in
the Supply Agreement):

        1. Pursuant to Section 1.3, OpenSky hereby changes the Mix and delivery
schedule in accordance with Exhibit A hereto.

        2. Section 1.2 is amended in its entirety to read as follows:

                "1.2 Payments. Buyer shall make payments due to Seller for
        Deliverable Items either directly to Seller or to such bank as Seller
        may designate in writing. Payments for Modems shall be due and payable
        in full, in cash, by Buyer thirty (30) days prior to each scheduled
        delivery of Modems into Seller's Distribution Facility in San Diego,
        California (the "Novatel Distribution Facility") with respect to any
        delivery scheduled in Annex A to be made on or before December 31, 1999.
        Payments for Modems shall be due and payable in full, in cash, by Buyer
        within thirty (30) days following the date of each scheduled delivery of
        Modems into the Novatel Distribution Facility with respect to any
        delivery scheduled in Annex A to be made on or after January 1, 2000.
        Each delivery of specification compliant Modems in accordance with Annex
        D for which a pre-payment by Buyer has been received may not be
        canceled. Payments for Deliverable Items (other than Modems), shall be
        due and payable in full, in cash, by Buyer within thirty (30) days
        following the date of shipment to end-users on behalf of Buyer. For
        purposes of this Agreement, "Deliverable Items" shall mean any item, or
        parts thereof, that Seller is obligated to provide under this Agreement
        including but not limited to Modems, documentation, know-how and
        information. Payment for shipping and configuration and activation shall
        be due and payable in full, in cash, as set forth in Sections 1.8 and
        2.1, respectively."

        3. Section 1.7 is amended in its entirety to read as follows:

                "1.7 Delivery and Title. The Modems sold to Buyer shall be
        delivered to the Novatel Distribution Facility in accordance to the
        delivery schedule set forth in Annex A. Title and risk of loss in the
        Modems shall transfer to Buyer FOB Manufacturer, as determined by
        Seller. Seller shall warehouse the inventory on behalf of Buyer and ship
        to end-users the Modems on behalf of Buyer from the Novatel Distribution
        Facility in

<PAGE>   21

        accordance with Section 1.8 below. Subject to Section 8 below, all
        Modems delivered to Buyer shall be non-returnable."

        4. Section 1.8.1 is amended by deleting the date "March 1, 2000" in the
first sentence and replacing it with the date "May 1, 2000", so that the
Shipping Period ends on May 1, 2000.

        5. Section 7.1 is amended by deleting the date "April 1, 2000" in the
first sentence and replacing it with the date "May 1, 2000", so that the term of
the Supply Agreement ends on May 1, 2000.

        6. In all other respects, the Supply Agreement, as herein amended, shall
remain in full force and effect, including Section 1.3 of the Supply Agreement
without giving effect to this Amendment. Subject to the foregoing, to the extent
that any provisions of the Supply Agreement and any provisions of this Amendment
are in conflict, the provisions of this Amendment shall govern. In the event any
one or more of the provisions contained in this Amendment or any instrument
entered into in connection herewith is for any reason held to be invalid or
unenforceable in any respect, that event shall not affect any other provision of
this Amendment or such other instrument.

        7. This Amendment shall be governed by, and construed and enforced in
accordance with, the substantive laws of the State of California, without regard
to its principles of conflicts of laws.

        8. This Amendment shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and assigns, legal
representatives and heirs.

        9. This Amendment may be executed in one or more counterparts, each of
which shall be deemed to be an original, but all of which take together shall
constitute one and the same instrument.

<PAGE>   22

        IN WITNESS WHEREOF, this Amendment has been duly executed as of the date
first written above.

                                            NOVATEL WIRELESS, INC.

                                            /s/ Bruce A. Gray
                                            ------------------------------------
                                            By: Bruce A. Gray
                                            Its: Vice President, Sales & Mkt.

                                            OPENSKY CORPORATION

                                            /s/ Patrick McVeigh
                                            ------------------------------------
                                            By: Patrick McVeigh
                                            Its: CEO

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00012-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00012-of-00352.parquet"}]]