We're just discussing something similiar here:
http://www.esoui.com/forums/showthread.php?t=1571
Right now there has been a post made in the official forums asking if it 's allowed and could be expanded toward Group-Notes.
If they give a positive answer something like this would be very well possible (and who know 's maybe a wonder happens
and they even implement a proper communication API).
Cheers!
