Gobby is a free collaborative editor based on libobby, a library which provides synced document buffers. It supports multiple documents in one session and a multi-user chat

It uses GTK+ 2.6 as its windowing toolkit and thus integrates nicely into the GNOME desktop environment.

Here are some key features of "Gobby":

· Realtime Collaboration
· Each user has its own colour (changeable) to be identified by others
· IRC-like Chat for communicating with your partners while coding
· Sidebar with all the others having joined the session
· Syntax highlighting for most programming languages
· Session password protection
· Multiple documents in one Session
· Drag'n'drop of documents into gobby
· Document synchronisation on request
· Zeroconf support
· Unicode support