i've added a few so far, there used to be a thread for this but I don't know where it went. My GT: American Maniac , I have tons of games add me.
For those of you that do I suggest checking out Windows Live Messenger, and make that your new instant messaging program. Next month you will be able to instant message your friends on the 360 if your on the computer if you go to
www.xbox.com it shows a screen shot of it on the 360.