Press Release

PalmSource Expands Java Support With IBM WebSphere

SAN JOSE, Calif., PalmSource® Developer Conference, Feb. 10, 2004 — PalmSource, Inc. (NASDAQ: PSRC) provider of Palm OS®, a leading operating system powering next generation mobile devices and smartphones, announced today it has licensed IBM's WebSphere™ MicroEnvironment (WME) Java™ 2 Micro Edition (J2ME) certified runtime environment and WebSphere Studio Device Developer (WSDD) toolset for integration into the Palm OS platform.
 
Providing open-standards-based software development environments such as WME is expected to create new market opportunities for the more than 275,000 Palm OS developers and is anticipated to broaden the reach of the Palm OS platform into the growing Java developer community. In addition to native Palm OS applications, WME provides Palm OS developers the tools needed to execute Java MIDlet applications designed to run on Palm Powered™ smart mobile devices.
 
PalmSource has also licensed the WME Java Virtual Machine (JVM) to enable existing and new Java applications to run on Palm Powered smart mobile devices. Additionally, users will be able to run existing Java applications originally built for MIDP-compliant devices, such as mobile phones and pagers, to run on Palm Powered smart mobile devices.
 
"The combination of PalmSource's strength as a leading mobile platform provider and IBM, a leader in Java development, attests to the growing importance of embedded Java solutions for smart mobile devices," said David Nagel, president and CEO of PalmSource, Inc. " We believe integrating IBM's WME will create a Java development environment that will foster growth in the development of Palm OS-based Java solutions.
 
Extending Palm OS support for Java will encourage adoption of the Palm OS platform among the Java developer community to create software applications that take advantage of the advanced functionality of Palm Powered smart mobile devices. With more than 3 million members, the Java development community will now be able to leverage existing tools and languages to create new Palm OS-based Java solutions. In addition, integrating IBM's WME is designed to accelerate time to market for Palm Powered smart mobile devices.
 
By supporting Java, Palm Powered smart mobile devices will also be able to leverage mobile operator networks worldwide that have standardized their mobile services offerings on Java, making Palm OS a connected platform for mobile wireless products. Java delivers new application power and cutting edge wireless connection benefits to mobile devices, whether it is a business application that wirelessly connects to your corporate data or your favorite game.
 
"Our latest effort with PalmSource underscores the importance of embedded Java in the device arena and enables the rich pool of Java developers to use existing skills and resources to bring their business applications to an increasingly mobile workforce," said Bruce Morse, Director, Business Development, IBM Pervasive Computing "IBM is committed to working with leading mobile operating system providers to extend computing to a range of devices."
 
PalmSource selected IBM WME because it delivers a fast, powerful and flexible J2ME runtime environment and is compliant with the latest standards defined by the Java Community Process (JCP). It is anticipated that IBM WME will enable the support of the industry standards for the Connected Limited Device Configuration (CLDC) 1.0 and 1.1 and Mobile Information Device Profile (MIDP) 1.0 and 2.0 in compliance with the Sun Technology Compatibility Kits (TCK), which will allow Palm Powered smart mobile devices to seamlessly execute J2ME-compliant MIDlet Suite applications. PalmSource intends to offer Palm OS licensees the WME JVM and runtime licenses on Palm OS Garnet and Palm OS Cobalt later this summer.
 
About PalmSource
PalmSource, Inc. is the company behind Palm OS, a leading operating system powering mobile information devices. Approximately 30 million Palm Powered handhelds and smartphones have been sold to date worldwide. Industry leaders Aceeca, AlphaSmart, Fossil, Founder Technology, Garmin, GSL, HuneTec, Kyocera, Lenovo, palmOne, PerComm, 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 http://www.palmsource.com, http://www.palmsource.co.uk, http://www.palmsource.fr, http://www.palmsource.de and http://www.palmsource.com.cn.
 
Palm, Palm OS and PalmSource are registered trademarks of, and Palm Powered is a trademark of, Palm Trademark Holding Company, LLC. Other brands may be trademarks of their respective owners.
 
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 related to, PalmSource's licensing of IBM's WME and JVM software and its features, functions and benefits, new market opportunities for Palm OS developers, and the expansion of the Palm OS platform to the growing Java developer community. 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 WME and JVM to provide anticipated results and benefits; to create the anticipated new market opportunities for Palm OS developer; expand the Palm OS platform into the Java developer community; realization of the anticipated growth in the Java community; adoption of the Palm OS platform by the Java developer community and their creation of timely software applications for Palm Powered smart mobile devices and their ability to compete with existing or new competitors; our continued ability to maintain and grow the Palm OS developer community; our ability to benefit from any growth in the smart mobile device markets; the ability of Palm OS licensees to accelerate time to market for their devices; and the general economic conditions in the U.S. and abroad 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 Quarterly Report on Form 10-Q for the period ended August 29, 2003 and November 28, 2003. 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.