actually the core PSYC folks have moved on to develop http://secushare.org which is a P2P social beast "done right" with technologies and syntaxes much faster than XMPP or JSON. secushare is getting plenty of attention in the european hacker community and projects like freedombox. it's the missing link basically.
However, like with all of these open-source efforts, traction as a network seems to be missing.