Of course I will.
I chose the first option - "Yes, I've been waiting for it."
I have.... I can't wait for it. I don't expect it to be even close to a "must-have accessory" but for Live Arcade games like any of the card games (especially Texas Hold 'Em when it comes out soon - though I have no interest in that game, really), among some other things, too -- It'll be great.
With it being rumored a mere $40 with a free arcade game, how can I pass up that offer?
MS will come up with many ways to use it -- not just with Live Arcade titles but maybe allowing to show your picture if you're at the top of a ranking list of a game or such? Who knows. I'm definately buying it!