Crytek has already said that íf they are going to make console versions of Crysis, they would make a new game, not a port of the PC game, but a new version that wíll run on at least the Xbox360. (source: ( http://www.xboxic.com/news/2227 ) )

They're also in the process of porting the CryEngine 2 to PS3, so I don't see why it wouldn't be possible to also make a special PS3 version for that platform. Anyways... the latest rumor-free official news was that they said 'it's possible, but there are no plans at the moment'.

Cheers