I released Solar 0.3.0 on May 30 (the change log is gigantic), but didn't want to blog about it until I had some more non-code work completed. That work has begun, and I'm satisfied enough with it to talk about it publicly now.
In short, we have a PEAR channel thanks to Clay Loveless, a complete site re-do using YaWiki (with a customized theme), some good example docs, a Hello World example app, and full auto-generated API docs. The next tasks, aside from fixing reported bugs, are to continue writing documentation and to start on a testing suite (hi Jason Sweat ;-).
Solar is a "Simple Object Library and Application Repository" for PHP5; please see the Solar site for full information.