Take one guess why Crytek are only showing Crysis gameplay from the XBOX. Crytek is a PC based company who has a multi-game contract with Microsoft. Take another guess which game will run the best...
Save your breath. If you don't have a PC that can run Crysis, why not enjoy the third enstallments of Resistance or Killzone?
I really don't want so turn my back on Crytek and the Crysis series, but it's all to clear that there will not be another Crysis 2 PS3 patch even though it so desperatly needed