Trey has released on Java.net the code of the Atom/APP service that he built for JavaOne and CommunityOne, bringing Identity, authentication and authorization to Atom Publishing Protocol.
It is now a sub-project of OpenDS and you can join it from https://atom.dev.java.net/
Trey has received very nice comments from James Governor from RedMonk as well as from other people… Sincerely, he deserves them.