I agree a MMO like WoW has far to much interface to be practical on a traditional control. You would have to use a key board and mouse which basically means you might as well play the PC. The tablet has a chance to bridge it a bit. I think FPS not because it won't be able to do them, but because the mainstream right now is a dual analog traditional controller. It would be far too much of a leap. Just look how FPS Games do on the Wii compared to the PS360. I know graphic a major part of that, but the fact that motion controls just have not been accepted in the FPS genre prevents any Wii game from being a breakaway hit. Yes they can be profitable, and sell well, but you are not going to see 5-10 mil is sales.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut
