A new version of XBList is out, 3.0
It's a very handy little program for your PC which runs like an Instant Messenger showing you your friends list, what games your friends are playing and you can send and read messages too, very nifty!
Particularly handy for those who don't have their PC and 360 next to one another, my 360 is downstairs and my PC upstairs so it's great being able to see what games my mates are playing whilst I'm up here.
Xboxic have all the details: http://www.xboxic.com/news/2235