http://gtalk-eclipse.sourceforge.net/
"This project attempts to integrate google talk into eclipse. The main idea of this is to aid eclipse users to communicate with google talk without leaving the ide. it is mainly targeted to developers that need to share code or communicate things related to the workspace or workbench."

Download: http://sourceforge.net/projects/gtalk-eclipse/

Pretty nice idea.

Why "Google Talk" and not "Jabber"?

'Cause Google Talk is cool, ya know.