Maybe for people who are deeply into Facebook, this is the cat's meow, but this actually makes life more difficult for me, the occasional user. The last thing I need in my life are friends on yet another incompatible IM network.<p>Facebook is okay, but I'm not giving up the rest of the internet just to interact with their precious social graph. Do they really think otherwise?
It's available in my network. I couldn't find it at first, it fits in at the bottom of the screen like a browser toolbar. It acts very much like gchat in gmail.