European developer Crytek has already said they were expanding into console development, and a job listing for their Budapest office calls for a PSP programmer. Methinks the CryENGINE 2 will not fit on PSP in it's present state (GI-normous.)
The Budapest office is currently working on Crysis Warhead which should be out this fall. Anyway, if Crytek wants to jump to all these consoles, they need to step it up. Just one blogdouche's opinion.
shacknews.com: Crysis Developer Pursuing PSP Development