Hi there! Buster.JS is not released yet. We're hard at work on a beta release.
The code is developed in the open. You can find it at gitorious.org/buster. We also have a mirror on github.com/buster_js, if you want to send us pull requests from your GitHub account.
We tweet on twitter.com/buster_js. It is actually a mirror of our StatusNet, statusnet.busterjs.org — we prefer to own our content. Since most people prefer Twitter, we're listening in on your tweets too though.
Come visit us at #buster on freenode. There's not much activity there, but we're lurking so feel free to lurk as well.
There's a mailing list on Google Groups. Not much activity there either, but we're checking in on it once in a while so feel free to post and subscribe.