Google Talk - Google's IM & VOIP

Google Talk

Is this yet another Instant Messenger client. Perhaps...but I'm definately trying it out. The IM client is very lightweight and clean...very Google. It includes voice communication.

I've got it working with Trillian Pro using the Jabber plugin.

"Google Talk is in beta and requires a Gmail username and password."

Here's a pretty thorough review from Download Squad.