Sure am. I pre-ordered the Signature Edition at Gamestop just a few days ago, actually. I was going to opt for the Collector's Edition that comes with the Ezio figure and Da Vinci's flying machine, but the figure it comes with isn't the one I saw on Facebook. Hopefully they sell the other figure by itself at some point in time, I'd love to have one.
(<- That emoticon creeps me out) How about you? You excited?