The main character is "an unnamed character who uses the deck of cards as his weapon," so unless it's some Setzerawesomesauce character, I think we may be looking at Yu-Gi-Oh!-Final Fantasy XIII.

Which actually has me interested in the game. I'd be interested how they can turn Final Fantasy into a card battling game. I hope to god they don't screw it up. This could be the only game I'll buy for my PSP.