Just finished getting the last achievement in Soul Calibur IV in anticipation for SCV. I can't wait!
Also, played the new maps in Gears of War 3 (they're awesome) and played through the Genkibowl DLC for Saints Row (it wasn't very long
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I played the Kingdoms of Amular: Reckoning Demo and it was pretty awesome.
I also played The Darkness 2 demo, and I have to say, I love the new art style.