Saros brings multi-writer synchronous distributed editing to the Eclipse IDE, e.g. for joint code reviews, explaining code remotely, or distributed pair programming -- all also for more than 2 participants; we call this Distributed Party Programming. It includes refined awareness functionality, optional screen-sharing, text chat, a simple distributed whiteboard/sketching facility, and (immature) VoIP.

Eclipse Update Site: http://dpp.sourceforge.net/update