Gobby – a collaborative text editor:
Features
* 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
* Cross-platform: It runs on Microsoft Windows, Linux, Mac OS X and other flavours of UN*X
* Gobby is free software and licenced under the GPL 2
Cool for a x-plat shop, like SubEthaEdit but multiplatform, but what a night-mare to install