I might start using github or something like that once the code is a bit more mature. Right now I'm working so much on it still that the overhead of using a version control system would be a hindrance for me especially since I have no experience with them (other than some experience with cvs 10-15 years ago and I hated it! ;) ) so I would first have to learn how to use git.
That said if you are offering to collaborate on the code, then let me know, I'm sure we can work something out! :)