First move by Sun to join Open Source Community

Sun Solaris is going open source after the release of Solaris 10 later this year. I think this is the answer by Sun Microsystems to the discussions on when Java will go open source. I remember some time back a lot of debate was there on will Sun open source Java? This was the main topic at the forum at Java One. Lets hope some more announcements will be done by Sun in near future about making Java open source.