Document:

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                                                                   EXHIBIT 10.47

                                [LOGO OF FORD]

                                                                January 31, 2000

Steve Isaacson
District Sales Manager
AvantGo. Inc.
1962 Sheridan Rd.
Buffalo Grove, IL 60089

Requisition Number: RQ00 032R19
Procurement Number: 028471

Steve,

Please accept this letter as authorization to ship and invoice the following
products and services to Ford Motor Company. This authorization is pursuant to
the terms and conditions of the existing Software License Agreement between
AvantGo and Ford, and the attached Term Sheet dated January 28, 2000.

Qty      Description                                                 Price
---      -----------                                                 -----
1        AvantGo Enterprise interactive Server Master License      $[******]

1        Premium Dedicated Support Consultant                       [******]

1        One-year maintenance support and software updates          [******]

                                                                   -------------
         Total                                                     $[******]

Regards,

/s/ [******]
-------------------
[******]
Director, Technical Services
Ford Motor Company

Agreed & Accepted

AvantGo Inc.

/s/ Felix Lin                                             2/4/2000
-------------
Felix Lin
Chairman of the Board

[******] Certain information on this page has been omitted and filed separately
with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

                      MASTER LICENSE AGREEMENT TERM SHEET
                                   BETWEEN
                  FORD MOTOR COMPANY, INC. AND AVANTGO, INC.
                               January 31, 2000

OVERVIEW                         Ford Motor Company, all its subsidiaries and
                                 affiliates whether wholly owned or controlled
                                 by Ford Motor Company, as well as subsidiaries
                                 and affiliates of Ford Motor Company that
                                 might be spun off during the life of this
                                 Agreement in which latter case the provisions
                                 of this Agreement shall apply only for the
                                 remainder of its term (collectively "Ford") and
                                 AvantGo, Inc. ("AvantGo") propose to amend the
                                 existing Software License Agreement ("SLA") to
                                 enable Ford to broadly deploy AvantGo
                                 Enterprise Interactive Server software
                                 ("AvantGo Software"). AvantGo Software will be
                                 used by Ford employees and contractors.

                                 This term sheet will supersede the SLA in the
                                 event of contradictions in terms.

                                 In addition, the following sections will be
                                 stricken from the SLA:

                                 Section 1 Definitions -- "Confidential
                                 Information" -- Delete second sentence
                                 beginning with, "Confidential Information may
                                 also include oral information....."

                                 Section 12 "Confidentiality of Agreement" --
                                 Delete in its entirety.

                                 [******]

                                 Ford will be responsible for the management and
                                 support of AvantGo Software on Ford servers at
                                 any of its locations.

MASTER LICENSE      Scope        Ford shall have a non-exclusive, worldwide,
AGREEMENT                        unlimited use license for AvantGo Software.

                                [******]

[******] Certain information on this page has been omitted and filed separately
with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

<TABLE>
<S>                                    <C>                                 <C>
                                                                           [******] If Ford chooses to use some or all of these
                                                                           enhancements and/or updates, the parties agree to
                                                                           negotiate the terms in good faith.

                                       Term                                [******]

                                       Software updates supporting         AvantGo will, in the future, add support for additional
                                       additional connectivity, devices,   wireless connectivity options, handheld devices and
                                       and operating systems               handheld device operating systems.  These updates to
                                                                           AvantGo Software will be provided as part of our
                                                                           standard maintenance program.

                                       Platforms                           AvantGo Software may be deployed on hardware servers
                                                                           running Linux, Solaris, and Windows NT. [******]

                                       Non-Compete                         Ford shall not, directly or indirectly, offer a service
                                                                           competitive with AvantGo.com.

MAINTENANCE AND SUPPORT                                                    AvantGo will provide standard telephone and e-mail
                                                                           support and software updates.

FEES                                   Master License                      $[******]

                                                                           After [******] months, Ford shall pay $[******] for
                                                                           each user license above [******] licenses.

                                       Maintenance and Support             During the first [******]

                                                                           Thereafter, maintenance and support fees will be
                                                                           [******]% of the master license fees to be paid annually
                                                                           in advance.

                                       Dedicated Support                   [******]

                                       Consulting                          [******]

JOINT MARKETING                                                            Ford agrees to issue a joint press release announcing a
                                                                           strategic relationship with AvantGo within 30 days of
                                                                           entering into an
</TABLE>

[******] Certain information on this page has been omitted and filed separately
with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

<PAGE>

                           agreement with AvantGo [******]

                           Ford agrees to be a reference account for
                           AvantGo.

                           Ford will assist AvantGo in creating a "success
                           story" for marketing purposes, highlighting
                           Ford's use of AvantGo Software.

[******] Certain information on this page has been omitted and filed separately
with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.<PAGE>

                                                                   EXHIBIT 10.48

                  AMENDED TERMS TO LICENSE AGREEMENT BETWEEN
                        FORD MOTOR COMPANY AND AVANTGO

THIS AMENDMENT is entered into March 7, 2000 ("Effective Date"), by and between
AvantGo Inc., located at 1700 S. Amphlett Blvd., Suite 300, San Mateo, CA 94402
(hereinafter referred to as "AvantGo"), and Ford Motor Company located at 1000
Republic Drive, 1832 Suite 600, Allen Park, M148101 (hereinafter referred to as
"Licensee").

                                   RECITALS

WHEREAS AvantGo and Licensee wish to modify the Software License Agreement
referenced in P.O. # A01RL99-027767 dated December 9, 1999 and Master License
Term Sheet dated January 31, 2000, between the parties hereto (the
"Agreements"), in order to effect a change in the terms of the Agreements.

NOW THEREFORE, it is agreed that the Agreements shall be modified as of the date
of this Amendment, unless otherwise specified, as follows:

1)   Definitions
     -----------

     The definition of Confidential Information in Section I of the License
     Agreement shall be deleted in its entirety and replaced with the following:

     "Confidential Information of AvantGo shall mean software and related
     documents only as disclosed by AvantGo to Licensee pursuant to this
     Agreement which is in written, graphic, machine readable or other tangible
     form and is marked "Confidential," "Proprietary" or in some other manner to
     indicate its confidential nature.

2)   License Grant
     -------------

     The language of 3.1 in the License Agreement shall be deleted in its
     entirety and replaced with the following:

     3.1  Grant. "AvantGo hereby grants to Licensee a license in accordance with
          ------
          the attached Master License Agreement Term Sheet dated January 31,
          2000."

3)   Confidentiality of Agreement
     ----------------------------

     The language of Section 12 in the License Agreement shall be deleted in its
     entirety and replaced with the following:

"AvantGo agrees to adhere to Licensee's Standard Public Affairs Guidelines, as
attached, prior to identifying Licensee as a Software user in presentations,
press releases, on AvantGo's Site, advertising and marketing materials."

The parties agree that except as amended in the manner specified above, all
remaining provisions of the Agreements shall continue in full force and effect.

Agreed and Accepted by:

AVANTGO, INC.                                 FORD MOTOR COMPANY:

By:      /s/ Tom Hunter                       By:    [******]
   -----------------------------                 ---------------------------

Name:    Tom Hunter                                  [******]
     ---------------------------              ------------------------------

Its:     CFO                                  Its:   Buyer
    ----------------------------                  --------------------------

Date:    3/7/00                               Date:  3/20/00
     ---------------------------                   -------------------------

[******] Certain information on this page has been omitted and filed separately
with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions.

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