Gobby is a free collaborative editor. This means that it provides you with
the possibility to edit files simultaneously with other users over a network.
It supports multiple documents in one session and a multi-user chat.
The platforms on which you could use Gobby are so far Microsoft Windows,
Linux, Mac OS X and other Unix-like ones. Developed with the Gtk+ toolkit it
integrates nicely into the GNOME desktop environment if you want it to.