We have opened the Nimbus project on http://nimbus.dev.java.net/ to the public so you can go there and get the source or sign up to help out

I am sitting here at Desktop Matters conference which is fab. Now that Nimbus has been announced I can blog on it. Nimbus is a new Look and Feel designed by Sun which is going to be avilable in future versions of Solaris and there are a group of us making a pure Java implementation with the aim of making a modern cross platform look and feel. The aim is for Nimbus to support Java 1.5 and newer and based on Synth as far as possible.Nimbus is going to be a public opensource project at java.net and will be available very shortly. Ben Galbraith has some of the design mockups on his blog.As a taster here are a couple screenshots of SwingSet running Nimbus L&F.