I went today, and Civ IV was sadly absent from 2K's section. They had some guy passing out CivAnon pamphlets, and they had a video (the same one they show on CivAnon.org I believe) they played once an hour, but no demos, no videos, no nothing. It's very disappointing, that was the one thing I was specifically looking for. If anyone knows anything about when and if there might be something later this week, let me know, I will so go back just for that.