A few days ago Nick merged his new API branch to the trunk and started writing unit tests along the way.
The buildslaves are now running against the trunk and using Twisted’s own trial tool, which is working great, buildbot rocks 
There’s now also a tarball generated and made available for download after every commit, including an update for the API documentation.
We hang out on #rtmpy on irc.collab.eu if you want to chat.