I was there today.
You can play the Iron Man and the Hulk games - both look better than I expected, and Hulk looks VERY much like a next gen graphics version of Ultimate Destruction. Sid Meier is there Saturday. Much bigger than last year, I hear.
Warhammer Online is there to play. Gaia Online is giving out 1000 gold coupons.
VG Cats is there... hm... can't think of a lot of other stuff video gamey.
V
Tomorrow I buy a Sinestro Corps shirt and maybe a Cortana figure.