That's great news, I'm looking forward to having this available!  Any idea when you want to release a first non-testnet version?

Is there a (high-level) description of how it works available?  I'm not interested in how exactly the communications protocol is built-up byte-for-byte or the like, but would be interested in seeing what information the peers communicate to each other and so on so that I can form my own opinion on how secure and anonymous this is.  (I trust you to do it "right", but am still interested in the details.)