Google Talk can now be launched from the browser, so you don't need to use the Google Talk application. The Talk gadtget also supports multi-person chat sessions.

Editions impacted:
Standard, Premier, Education and Partner Editions

Languages impacted:
US English

How to access what's new:
Bookmark http://hostedtalkgadget.google.com/a/your-domain.com/talkgadget/client to quickly launch the Google Talk gadget.

For more information:
http://www.google.com/support/a/google.com/bin/answer.py?answer=58339