The Crysis 2 demo that we got to test at E3 was insanely beautiful. A 360 pad extended from the demo station, an Elite unit was standing next to the screen, and 360 button symbols popped up continuously on screen. Crytek answered "yes" when we asked if it really was the 360 version we played.
That was apparently a lie. I got a mail from one of our old collaborators; he apparently managed to press the Crytek representatives to admit it was the PC version that they demo'd, dressed up as the Xbox 360 version.
"By the way,Crysis 2 was not run on a Xbox 360. They only pretended, when we pressed them a bit (resolution seemed way to high) it was revealed that it was a PC, with Xbox 360-controller..."