After working on erl-telehash I have some doubts about the protocol details (although the overall idea still appears sound). I described how I would modify it at https://gist.github.com/1910754 but I'm not moving forwards with it at the moment (working full-time for now).
https://github.com/jamii/erl-telehash is a reasonably complete implementation (it's only missing rate limiting and auth).
After working on erl-telehash I have some doubts about the protocol details (although the overall idea still appears sound). I described how I would modify it at https://gist.github.com/1910754 but I'm not moving forwards with it at the moment (working full-time for now).