Last weekend I started playing with Telepathy and its tubes in
Elisa. What I prototyped is two plugins:
a Telepathy plugin able to:
join a Multi-User Chatroom (over local-xmpp or standard Jabber)
share a set of DBus Tubes in that room
connect to other Tubes shared in the room and do remote DBus calls
a Recommended plugin able to:
get a list of media recommended by people from the chatroom
recommend a media to all people of the chatroom
The work is reallly early stage and I had issues connecting to a Jabber MUC, I need to debug it and eventually report to the Telepathy hackers :) Anyway, here's a little demo video showing off 2 Elisa users sharing Youtube video links over the local network.
NB: Yes I know, Elisa on my MacMini is running slowww, on the eeepc it runs better ;)
Many other cool features can be implemented following those principles: