Java 6 Standard Edition has been released and can be downloaded here. The long winded version of what’s new can be read here, while the summary of new features and changes can be found here.
Personally I don’t know if I’ll be working on anything in 1.6 anytime soon as 1.5 is still the current standard for non-J2EE Java, but I wouldn’t be surprised to be using it in production by next Summer or so. Although I still think “wtf” about them including Derby as part of the standard release.
Of the things that should be in there from Apache rather than Derby would be most everything which is currently in Apache Commons as it seems like pretty much every Java project needs a good 4-5 Apache Commons libraries.