WikiEducator roadmap/Integrate real-time collaboration tools

The following can all help enrich the experience of learners and educators:
 * whiteboarding (Inkscape already has an open source implementation)
 * real-time collaborative editing (Gobby, SynchroEdit)
 * voice over IP (SIP, Asterisk)
 * Skypecast: group talks, hundreds can listen / moderator selects questions
 * text chat (IRC, Jabber, web-based chats)
 * file sharing (LionShare, iFolder)
 * handshaking / negotiation interfaces (computer games provide some good examples of these)
 * screen sharing / remote control
 * live changelogging / filtering / visualization

Needless to say, integrating any single one of these features properly with the wiki interface is a challenge. However, many of these deliverables are independent of each other, so that (with sufficient resourcing) different strategies can be tried in parallel.