weeks - 6:32 pm on Nov 2, 2007 (gmt 0)
It will be interesting to see if Facebook joins or not. They might have enough buzz right now that developers would work with their stuff first and foremost, then work on Google/MySpace stuff. Tough call, competitive positioning-wise. One does not want to be left out or join late, either. But, if I were Facebook, I'd wait and see right now.