I think I can create multiplatform plugin for pidgin, which would be written in C and C++, which will help users stay in touch with other project members, even if browser is closed. Currently I am writing simillar plugin for Polish site Wykop.pl (screenshot of the plugin).
To create something simmilar for Phabricator I need API for Conpherence, but AFAIK thre is one already created :)
It would be great if someone could give me some feedback, whether this kind of plugin could be interesting for typical user of phabricator, or is it only my imagination :)