Press Release

PalmSource to Participate in EclipseCon 2005

Company to demonstrate Palm OS Developer Suite 1.1

SUNNYVALE, California, March 1, 2005 — PalmSource, Inc. (NASDAQ: PSRC), provider of Palm OS®, a leading operating system powering next generation phones and mobile devices, today announced it is participating in EclipseCon 2005, March 1 – 2 at the Hyatt Regency Hotel in Burlingame, California. Located in booth 513, the Company will demonstrate Palm OS Developer Suite.

"Palm OS Developer Suite demonstrates PalmSource's commitment to its 380,000–plus registered developers to provide best–in–class tools to create next–generation wireless applications for ARM–based Palm Powered™ phones and wireless mobile devices," said Dino Brusco, vice president of technical services at PalmSource. "We believe the suite simplifies the development process and allows for the creation of native applications that leverage the more than 100 new APIs in the new Palm OS® Cobalt SDK."

Palm OS Developer Suite
Palm OS® Developer Suite 1.1 is designed to enable the development of next generation multimedia and wireless applications for ARM– and 68K–based Palm Powered™ devices. Palm OS Developer Suite 1.1 includes an open source Integrated Development Environment (IDE) based on Eclipse, originally developed by IBM. Eclipse is a commercial–quality, best–in–class IDE with several hundred plug–in tools that support major software languages including C, C++, Java, and COBOL. Palm OS Developer Suite 1.1, is available free of charge to all PalmSource registered developers.

Key features of Palm OS Developer Suite 1.1 include:

  • Support for development of Palm OS Protein applications (x86 and ARM), 68K applications, and PACE Native Objects
  • Based on the open–source Eclipse IDE, version 3.0 and Eclipse C/C++ Developer Tools, version 2.0
  • Managed Make support eliminates need to manually edit makefiles
  • Integrated debugging support for Palm OS Simulators, Palm OS Emulator, and most devices with serial or USB connectivity
  • Standalone Palm OS Resource Editor with support for XRD resource format
  • Integrated build environment and command–line build tools bundled SDKs and simulators for Palm OS® Garnet (5.4 and earlier) and Palm OS® Cobalt (6.1)

About PalmSource
PalmSource, Inc. is the company behind Palm OS®, a leading operating system powering mobile information devices. Approximately 38 million Palm Powered™ handhelds and smartphones have been sold to date worldwide. Industry leaders Aceeca, AlphaSmart, Fossil, Garmin, GSL, Kyocera, Lenovo, palmOne, QTech, Samsung, Sony, Symbol Technologies and Tapwave license Palm OS to create diverse mobile devices that meet unique customer needs. Palm OS has given rise to a large community of users, enterprises, developers and manufacturers, who together make up the Palm Powered Economy. More information about PalmSource is available at www.palmsource.com, www.palmsource.co.uk, www.palmsource.fr, www.palmsource.de, www.palmsource.com/es and www.palmsource.com.cn.

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CAUTIONARY NOTE REGARDING FORWARD–LOOKING STATEMENTS: This press release contains forward–looking statements that involve risks and uncertainties, as well as assumptions that if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward–looking statements. Such forward–looking statements include, without limitation, statements regarding the features, functions and benefits of Palm OS® Developer Suite 1.1; Palm OS® Cobalt, and the development of next generation multimedia and wireless applications. The risks and uncertainties that could cause our results to differ materially from those expressed or implied by such forward–looking statements include, without limitation the ability of Palm OS Developer Suite 1.1 to perform as described and to provide the anticipated benefits including, without limitation, simplification of the development process; integration of the tools required by developers to easily build, edit, compile, and debug ARM–native applications for Palm OS®; the ability of Palm OS Developer Suite 1.1 to enable Palm OS developers to create best–in–class next generation wireless applications for ARM–based Palm Powered phones; acceptance of Palm OS Cobalt by our licensees and use of it's new API's by developers; the ability of PalmSource to grow and maintain its developer community and to compete with existing and new competitors; the continued growth of the smartphone and wireless markets and the penetration of these markets by PalmSource and its licensees; and other risks and uncertainties contained in our public announcements, reports to stockholders and other documents filed with and furnished to the Securities and Exchange Commission, including our Annual Report on Form 10–K for the period ended May 28, 2004 and our Quarterly Report on Form 10–Q for the periods ended August 27, 2004 and November 26, 2004. All forward–looking statements in this press release are based on information available to us as of the date hereof, and we assume no obligation to update these forward–looking statements.

Copyright © 2005, PalmSource, Inc. PalmSource, Palm OS, Palm Powered, and certain other trademarks and logos appearing on this press release are trademarks or registered trademarks of PalmSource, Inc. or its affiliate in the United States, France, Germany, Japan, the United Kingdom, and other countries. These marks may not be used in connection with any product or service that does not belong to PalmSource, Inc. (except as expressly permitted by a license with PalmSource, Inc.), in any manner that is likely to cause confusion among customers, or in any manner that disparages or discredits PalmSource, Inc., its licensor, its subsidiaries or affiliates. All other brands and trademarks used herein are or may be trademarks of, and are used to identify other products or services of, their respective owners. All rights reserved.