Glad you like the improvements.
Things are still in flux for a little bit while we're churning through some of the bugs and Release Candidates. When it settles down, we're going to write up a quick "How to integrate" type thing, because we don't want to write all the modules to add functionality
We'd definitely like your (and anyone else's) help!
RC2 was just released (minutes ago), but only ~4 days after RC1. If there's less bugs and more wider testing & reporting, hopefully RC3/stable? will be out shortly as well and we can get a move on with more even features and development including other developers like yourself.
Thanks for the positive feedback!