Google Talk
It looks like Google Talk could be quite interesting. Right this very second you can log in to talk.google.com using your gmail account from a Jabber client. s2s (server-to-server) support currently does not seem to be enabled. I’m sure that tomorrow we’ll see what this all means.
Update: Google Talk is live! Say hello to a serious contender in the IM market based on Jabber!
Hrmm. Looks like it’s not actually connected to the public Jabber network yet. Guess we’ll have to wait some more.