The problem with the PS3 is that to produce the high quality games that the players want a lot of cash (compared to just making a minigame thing for the Wii and probably selling more).

I'm waiting for INfamous (Just picked up assasin's creed for the 360), I love those openworld run around games and it looks like a mix of AC and GTA with super powers. I'm also waiting for the conduit (Wii) and an official apology from nintendo for screwing up Brawl so hard.