You have a PS3, so I would recommend PSP. It has a fair bit of connectivity, like Remote Play, and more coming in the future, such as Resistance: Retribution and the "infected" thing if you own Resistance 2.
Next year should be a lot better for the PSP. Capcom have said they will support it more, and once again, RESISTANCE RETRIBUTION!
And the PSP has quite a library already: Syphon Filter: Dark Mirror, SF: Logan's Shadow, CC FFVII, Lumines, Chains of Olympus, Patapon etc.
And it has PSN now.







