I'm interrested to develop a new messaging system that truly provides end to end encryption and is as secure as possible. All that with an open source protocol. I would be glad to share the work with people sharing the same interest.
The protocol and several implementations (at least in C and in Java) are already there. It's called OTR (Off The Record) http://www.cypherpunks.ca/otr/ Not to confuse with a GTalk feature that has the same name.
