OpenSolaris Community Advisory Board Formed

Representatives From Open Source Community, Sun, and OpenSolaris Pilot Program Hold First Meeting

SANTA CLARA, Calif. - April 4, 2005 - Sun Microsystems, Inc. (Nasdaq: SUNW) today announced the names of the five individuals selected to participate in the OpenSolaris Community Advisory Board (CAB). The Community Advisory Board was created to steward the evolution of the OpenSolaris community towards self-governance.

The five member board consists of two members who were nominated and elected by the OpenSolaris pilot community: Al Hopper, engineer consultant, Logical Approach; and Rich Teer, independent Solaris consultant and author of "Solaris Systems Programming". The three other members on the advisory board are Roy Fielding, chief scientist at Day Software and co-founder and member, the Apache Software Foundation; Simon Phipps, chief technology evangelist, Sun; and Casper Dik, senior staff engineer, Sun.

"The formation of the CAB is another major step forward in making OpenSolaris a reality," said John Loiacono, executive vice president, Software, Sun Microsystems, Inc. "These five individuals are passionate about open source and will be instrumental in growing the Solaris community and the promotion of new innovations."

As outlined in Jan., Sun plans to release buildable source code for the Solaris 10 Operating System (OS) under the Common Development and Distribution License (CDDL) in the second quarter of 2005. Background on the five CAB members and information about the OpenSolaris community, can be found on the Net: http://www.opensolaris.org/.

Note to Editors
Jonathan Schwartz, president & COO, Sun, will be delivering the opening keynote at the Open Source Business Conference (OSBC) in San Francisco on April 5, 2005 at 9:30 a.m. PDT. OSBC registration information can be found on the Net: http://www.osbc.com/live/13/media.

About Sun Microsystems, Inc.

Since its inception in 1982, a singular vision -- "The Network Is The Computer" -- has propelled Sun Microsystems, Inc. (Nasdaq: SUNW) to its position as a leading provider of industrial-strength hardware, software and services that make the Net work. Sun can be found in more than 100 countries and on the World Wide Web at http://www.sun.com/

Sun, Sun Microsystems, the Sun Logo, Solaris, OpenSolaris, and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries.