Document:

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                                                                   EXHIBIT 10.15

                                  DEMAND NOTE

                              (eMAKE CORPORATION)

$1,500,000                                                         June 29, 2000

     In consideration of the loan (hereinafter referred to as a "Loan")
Safeguard 2000 Capital, L.P., a Delaware limited partnership (the "Lender"), has
made to eMake Corporation, a Delaware corporation (the "Borrower"), and for
value received, the Borrower hereby promises to pay to the order of the Lender
or its assigns, at the Lender's office located at 103 Springer Building, 3411
Silverside Road, Wilmington, DE, 19810, or at such place in the continental
United States as the Lender may designate in writing, in lawful money of the
United States, and in immediately available funds, the principal sum of ONE
MILLION FIVE HUNDRED THOUSAND DOLLARS ($1,500,000).

     The unpaid principal balance of the Note shall be paid on the date which is
60 days after the date of demand for payment by the Lender, or the date which is
one year from the date hereof, whichever first occurs.

     The Borrower hereby further promises to pay to the order of the Lender or
its assigns interest on the outstanding principal amount from the date hereof,
at an annual rate equal to the announced prime rate of the PNC Bank, N.A. (the
"Prime Rate") plus one percent (1%). Such interest rate shall be changed when
and as the Prime Rate changes. In addition, the Borrower shall pay on demand
interest on any overdue payment of principal and interest (to the extent legally
enforceable) at the fluctuating Prime Rate plus three percent (3%).

     Interest shall be payable when the unpaid principal balance of the Note is
paid.

     All payments made on this Note (including, without limitation, prepayments)
shall be applied, at the option of the Lender, first to late charges and
collection costs, if any, then to accrued interest and then to principal.
Interest payable hereunder shall be calculated for actual days elapsed on the
basis of a 360-day year. Accrued and unpaid interest shall be due and payable
upon maturity of this Note. After maturity or in the event of default, interest
shall continue to accrue on the Note at the rate set forth above and shall be
payable on demand of the Lender.

     The outstanding principal amount of this Note may be prepaid by the
Borrower upon notice to the Lender in whole at any time or in part from time to
time without any prepayment penalty or premium; provided, that upon such payment
any interest due to the date of such prepayment on such prepaid amount shall
also be paid.

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     Notwithstanding anything in this Note, the interest rate charged hereon
shall not exceed the maximum rate allowable by applicable law. If any stated
interest rate herein exceeds the maximum allowable rate, then the interest rate
shall be reduced to the maximum allowable rate, and any excess payment of
interest made by the Borrower at any time shall be applied to the unpaid balance
of any outstanding principal of this Note.

     An event of default hereunder shall consist of:

     (i) a default in the payment by the Borrower to the Lender of principal or
interest under this Note as and when the same shall become due and payable; or

     (ii) an event of default by the Borrower under any other obligation,
instrument, note or agreement for borrowed money, beyond any applicable notice
and/or grace period; or

     (iii) institution of any proceeding by or against the Borrower under any
present or future bankruptcy or insolvency statute or similar law and, if
involuntary, if the same are not stayed or dismissed within sixty (60) days, or
the Borrower's assignment for the benefit of creditors or the appointment of a
receiver, trustee, conservator or other judicial representative for the Borrower
or the Borrower's property or the Borrower's being adjudicated a bankrupt or
insolvent; or

     (iv) the admission in writing by Borrower of its inability to pay its debts
as they become due.

     Upon the occurrence of any event of default, interest shall accrue on the
outstanding balance of this Note at the Prime Rate plus three percent (3%), the
entire unpaid principal amount of this Note and all unpaid interest accrued
thereon shall, at the sole option of the Lender, without notice, become
immediately due and payable, and the Lender shall thereupon have all the rights
and remedies provided hereunder or now or hereafter available at law or in
equity.

     Any action, suit or proceeding where the amount in controversy as to at
least one party, exclusive of interest and costs, exceeds $100,000 ("Summary
Proceeding"), arising out of or relating to this Note, or the breach,
termination or validity thereof, shall be litigated exclusively in the Superior
Court of the State of Delaware (the "Delaware Superior Court") as a summary
proceeding pursuant to Rules 124-131 of the Delaware Superior Court, or any
successor rules (the "Summary Proceeding Rules"). Each of the parties hereto
hereby irrevocably and unconditionally (i) submits to the jurisdiction of the
Delaware Superior Court for any Summary Proceeding, (ii) agrees not to commence
any Summary Proceeding except in the Delaware Superior Court, (iii) waives, and
agrees not to plead or to make, any objection to the venue of any Summary
Proceeding in the Delaware Superior Court, (iv) waives, and agrees not to plead
or to make, any claim that any Summary Proceeding brought in the Delaware
Superior Court has been brought in an improper or otherwise inconvenient forum,
(v) waives, and agrees not to plead or to make, any claim that the Delaware
Superior Court lacks personal jurisdiction over it, (vi) waives its right to
remove any Summary Proceeding to the federal courts except where such courts are
vested with sole and exclusive jurisdiction by statute and (vii) understands and
agrees

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that it shall not seek a jury trial or punitive damages in any Summary
Proceeding based upon or arising out of or otherwise related to this Note and
waives any and all rights to any such jury trial or to seek punitive damages.

     In the event any action, suit or proceeding where the amount in controversy
as to at least one party, exclusive of interest and costs, does not exceed
$100,000 (a "Proceeding"), arising out of or relating to this Note or the
breach, termination or validity thereof is brought, the parties to such
Proceeding agree to make application to the Delaware Superior Court to proceed
under the Summary Proceeding Rules. Until such time as such application is
rejected, such Proceeding shall be treated as a Summary Proceeding and all of
the foregoing provisions of this Section relating to Summary Proceedings shall
apply to such Proceeding.

     If a Summary Proceeding is not available to resolve any dispute hereunder,
the controversy or claim shall be settled by arbitration conducted on a
confidential basis, under the U.S. Arbitration Act, if applicable, and the then
current Commercial Arbitration Rules of the American Arbitration Association
(the "Association") strictly in accordance with the terms of this Note and the
substantive law of the State of Delaware. The arbitration shall be conducted at
the Association's regional office located closest to the Lender's principal
place of business by three arbitrators, at least one of whom shall be
knowledgeable in general business matters and one of whom shall be an attorney.
Judgment upon the arbitrators' award may be entered and enforced in any court of
competent jurisdiction. Neither party shall institute a proceeding hereunder
unless at least 60 days prior thereto such party shall have given written notice
to the other party of its intent to do so.

     Neither party shall be precluded hereby from securing equitable remedies in
courts of any jurisdiction, including, but not limited to, temporary restraining
orders and preliminary injunctions to protect its rights and interests but such
remedies shall not be sought as a means to avoid or stay arbitration or a
Summary Proceeding.

     The Borrower hereby waives presentment, demand, protest and notice of
dishonor and protest, and also waives all other exemptions; and agrees that
extension or extensions of the time of payment of this Note or any installment
or part thereof may be made before, at or after maturity by agreement by the
Lender. Upon default hereunder the Lender shall have the right to offset the
amount owed by the Borrower against any amounts owed by the Lender in any
capacity to the Borrower, whether or not due, and the Lender shall be deemed to
have exercised such right of offset and to have made a charge against any such
account or amounts immediately upon the occurrence of an event of default
hereunder even though such charge is made or entered on the books of the Lender
subsequent thereto. The Borrower shall pay to the Lender, upon demand, all costs
and expenses, including, without limitation, attorneys' fees and legal expenses,
that may be incurred by the Lender in connection with the enforcement of this
Note.

     Notices required to be given hereunder shall be deemed validly given (i)
three business days after sent, postage prepaid, by certified mail, return
receipt requested, (ii) one business day after sent, charges paid by the sender,
by Federal Express Next Day Delivery or other guaranteed delivery service,
(iii) when sent by facsimile transmission, or (iv) when delivered by hand:

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     If to the Lender:             Safeguard 2000 Capital, L.P.
                                   C/o Safeguard Delaware, Inc., General Partner
                                   103 Springer Building
                                   P.O. Box 7048
                                   Wilmington, DE 19803
                                   Attn: Treasurer
                                   Fax:  302-478-3667

     With a required copy to:      Safeguard Scientifics, Inc.
                                   800 The Safeguard Building
                                   435 Devon Park Drive
                                   Wayne, PA 10987
                                   Attn: Chief Financial Officer
                                   Fax:  610-293-0601

     If to the Borrower:           eMake Corporation
                                   2435 North Central Expressway
                                   Richardson, TX 75080-2722
                                   Attn: Chief Financial Officer

or to such other address, or in care of such other person, as the holder or the
Borrower shall hereafter specify to the other from time to time by due notice.

     Any failure by the Lender to exercise any right hereunder shall not be
construed as a waiver of the right to exercise the same or any other right at
any time. No amendment to or modification of this Note shall be binding upon the
Lender unless in writing and signed by it. Any provision hereof found to be
illegal, invalid or unenforceable for any reason whatsoever shall not affect the
validity, legality or enforceability of the remainder hereof. This Note shall
apply to and bind the successors of the Borrower and shall inure to the benefit
of the Lender, its successors and assigns.

     The Note shall be governed by and interpreted in accordance with the laws
of the State of Delaware.

     IN WITNESS WHEREOF, the Borrower, by its duly authorized officer intending
to be legally bound hereby, has duly executed this Demand Note as of the date
first written above.

                                             eMAKE CORPORATION

                                             By: /s/ ROBERT L. DRURY
                                                --------------------------------
                                                Robert L. Drury, Vice President<PAGE>   1
                                                                    EXHIBIT 10.2

                              CONSULTING AGREEMENT

     THIS CONSULTING AGREEMENT (the "Agreement") is made and entered into as of
the 30th day of June, 2000, by and between Mobility Electronics, Inc., a
Delaware corporation (the "Company"), and Portsmith LLC, an Idaho limited
liability company ("Consultant").

                                   WITNESSETH:

     WHEREAS, the Company desires to retain Consultant as provided herein, and
Consultant desires to be retained; and

     NOW, THEREFORE, for and in consideration of the mutual covenants and
agreements contained herein, and for other good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, the parties hereto
hereby agree as follows:

     1. DUTIES. Consultant is hereby retained to serve as a consultant to
Company to provide the following duties: consult with and advise the Company on
Windows 2000 PCI driver issues related to Split Bridge(TM) support via card bus
interfaces for Mobility's EasiDock product offering (the "Duties"). Consultant
shall provide the Duties to the Company as and when requested by the Company
(not to exceed twenty (20) hours per month, unless otherwise mutually agreed in
writing by the parties hereto).

     2. TERM. The term of this Agreement shall commence on the date hereof and
shall continue, unless earlier terminated pursuant to Section 6 below, for a
period of twelve (12) months, unless extended upon the mutual written agreement
of the parties hereto (the "Term").

     3. COMPENSATION. As compensation for rendering the Duties, Consultant shall
be entitled to the following:

          (a) Consultant shall be entitled to subscribe for 100,000 shares of
     common stock, par value $0.01 per share, of the Company, pursuant to the
     terms and conditions of that certain Subscription Agreement, a copy of
     which is attached hereto as Exhibit A.

          (b) During the Term, the Company shall reimburse Consultant for all
     reasonable and necessary out-of-pocket travel and other expenses incurred
     by Consultant in performing the Duties and approved by the Company prior to
     the incurrence thereof, such reimbursement to be on a monthly basis, within
     thirty (30) days after submission of a detailed monthly statement and
     reasonable supporting documentation.

The compensation set forth in this Section 3 will be the sole compensation
payable to Consultant for performing the Duties and no additional compensation
or fee will be payable by the Company to Consultant by reason of any benefit
gained by the Company directly or indirectly through Consultant's performing the
Duties, nor shall the Company be liable in any way for any additional
compensation or fee for performing the Duties unless the Company shall have
expressly agreed thereto in writing.

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     4. INDEPENDENT CONTRACTOR STATUS. The Company and Consultant agree that
Consultant is an independent contractor under this Agreement and shall in no way
be considered to be an agent or employee of the Company and, accordingly,
Consultant shall not be entitled to any benefits, coverages or privileges made
available to employees of the Company, including without limitation, social
security, unemployment, medical or pension payments. Consultant shall only
consult and render advice, and shall not undertake to commit the Company to any
course of action in relation to third persons, except as requested in writing by
the Company. The Company shall not deduct any social security or income taxes
from Consultant's payments set forth in Section 3.

     5. CONFIDENTIALITY.

          (a) ACKNOWLEDGMENT OF PROPRIETARY INTEREST. Consultant recognizes the
     proprietary interest of the Company in any Confidential and Proprietary
     Information (as hereinafter defined) of the Company. Consultant
     acknowledges and agrees that any and all Confidential and Proprietary
     Information communicated to, learned of, developed or otherwise acquired by
     the Consultant during the Term and related to and in connection with
     Consultant performing its duties hereunder, whether developed by Consultant
     alone or in conjunction with others or otherwise, shall be and is the
     property of the Company. Consultant further acknowledges and understands
     that his disclosure of any Confidential and Proprietary Information will
     result in irreparable injury and damage to the Company. As used herein,
     "Confidential and Proprietary Information" means, but is not limited to,
     information derived from reports, investigations, experiments, research,
     work in progress, drawings, designs, plans, proposals, codes, marketing and
     sales programs, client lists, client mailing lists, financial projections,
     cost summaries, pricing formula, contracts analyses, financial information,
     projections, maps, confidential filings with any state or federal agency,
     and all other concepts, ideas, materials or information prepared or
     performed for, by or on behalf of the Company by its employees, officers,
     directors, agents, representatives or consultants. "Confidential and
     Proprietary Information" shall not include any information which is or
     becomes part of the public domain through no fault of Consultant or that
     the Company regularly provides to third parties without restriction on use
     or disclosure.

          (b) COVENANT NOT-TO-DIVULGE CONFIDENTIAL AND PROPRIETARY INFORMATION.
     Consultant acknowledges and agrees that the Company is entitled to prevent
     the disclosure of Confidential and Proprietary Information. As a portion of
     the consideration for the retainment of Consultant and for the compensation
     being paid to Consultant by the Company, Consultant agrees at all times
     during the term of this Agreement and thereafter to hold in strictest
     confidence and not to disclose to any person, firm or corporation, other
     than to persons engaged by the Company to further the business of the
     Company, and not to use except in the pursuit of the business of the
     Company, Confidential and Proprietary Information, without the prior
     written consent of the Company, including Confidential and Proprietary
     Information developed by Consultant during the course of his engagement
     hereunder; provided, however, that notwithstanding the foregoing,
     Consultant shall not be obligated to keep secret and not to disclose
     Confidential and Proprietary Information generally known to the public
     through no wrongful act of Consultant or Confidential and Proprietary
     Information which the Company regularly

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     provides to third parties without restriction on use or disclosure or
     Confidential and Proprietary Information the disclosure of which is
     required by law.

          (c) RETURN OF MATERIALS. In the event of any termination of this
     Agreement for any reason whatsoever, or at any time upon the request of the
     Company, Consultant will promptly deliver to the Company all documents,
     data and other information pertaining to Confidential and Proprietary
     Information. Consultant shall not take any documents or other information,
     or any reproduction or excerpt thereof, containing or pertaining to any
     Confidential and Proprietary Information, unless as otherwise authorized in
     writing by the President of the Company.

     6. TERMINATION. This Agreement and the consulting relationship created
hereby shall terminate upon the earlier to occur of any of the following
events:(a) the expiration of the term of this Agreement as set forth in Section
2 above; or (b) mutual written agreement of the parties hereto. Notwithstanding
anything to the contrary in this Agreement, the provisions of Section 5 above
shall survive any termination, for whatever reason, of Consultant's engagement
under this Agreement.

     7. REMEDIES. Consultant recognizes and acknowledges that in the event of
any default in, or breach of any of, the terms, conditions or provisions of this
Agreement (either actual or threatened) by Consultant, the Company's remedies at
law shall be inadequate. Accordingly, Consultant agrees that in such event, the
Company shall have the right of specific performance and/or injunctive relief in
addition to any and all other remedies and rights at law or in equity, and such
rights and remedies shall be cumulative.

     8. NOTICES. Any notices, consents, demands, requests, approvals and other
communications to be given under this Agreement by either party to the other
shall be deemed to have been duly given in writing and personally delivered or
sent by facsimile or mail, registered or certified, postage prepaid with return
receipt requested, to the last known business address of each Party. Notices
delivered personally shall be deemed communicated as of actual receipt; mailed
notices shall be deemed communicated as of three days after mailing. Each Party
shall notify the other Party if such party changes its business address.

     9. ENTIRE AGREEMENT. This Agreement contains the entire agreement of the
parties hereto with respect to the subject matter contained herein and
supersedes all prior agreements and understandings, oral or written, between the
parties hereto with respect to the subject matter hereof. No modification or
amendment of any of the terms, conditions or provisions herein may be made
otherwise than by written agreement signed by the parties hereto.

     10. GOVERNING LAW. This agreement and the rights and obligations of the
parties hereto shall be governed, construed and enforced in accordance with the
laws of the State of Delaware (except the choice of law rules).

     11. PARTIES BOUND. This Agreement and the rights and obligations of the
parties hereto shall be binding upon and inure to the benefit of the Company and
Consultant and their respective heirs, personal representatives, successors and
assigns.

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     12. ENFORCEABILITY. If, for any reason, any provision in this Agreement
should be held invalid in part by a court of competent jurisdiction, then it is
the intent of each of the parties hereto that the balance of this Agreement be
enforced to the fullest extent permitted by applicable law.

     13. WAIVER OF BREACH. The waiver by any party hereto of a breach of any
provision of this Agreement shall not operate or be construed as a wavier of any
subsequent breach by any party.

     14. CAPTIONS. The captions in this Agreement are for convenience of
reference only and shall not limit or otherwise affect any of the terms or
provisions hereof.

     15. COSTS. If it is necessary to enforce or interpret the terms of this
Agreement by action at law or in equity, the prevailing party shall be entitled
to reasonable attorneys' fees, costs and necessary disbursements in addition to
any other relief to which he or it may be entitled.

     16. COUNTERPARTS. This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original and all of which shall
constitute one and the same instrument, but only one of which need be produced.

     IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the
date first above written.

                                       MOBILITY ELECTRONICS, INC.

                                       By: /s/ CHARLES R. MOLLO
                                           -------------------------------------
                                           Charles R. Mollo,
                                           Chief Executive Officer

                                       PORTSMITH LLC

                                       By: /s/ HOLMES LUNDT
                                          --------------------------------------
                                          Holmes Lundt,
                                          General Manager

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