EA is saying what EA's PR wants it to say, though it isn't hard to figure out that some systems have certain advantages over others that 3rd party devs would use where beneficial. I don't think they mean that certain types of games will be made for only one system. There is almost no game that can be done on one system that would be impossible to make on another if the money is there to do it. Rayman Raving Rabbits was doable without the Wiimote as seen by its 360 and PS3 versions. Live is something that a company could copy well enough on the PS3 if it was worth the effort (as I understand it Resistence's online is decent and free). Lair or RE5 can be ported to the Wii if it would sell enough to cover the 3 or so million dollar cost of redoing the game engine. Was RRR as good on the 360 and PS3 as the Wii? Is Resistence's multiplayer as good as Gears of War? Would Lair or RE5 look as good on the Wii as the PS3? No, no, and no, but that doesn't mean it can't be or won't be done. Most 3rd party multiplatform games would be similar enough though that the added cost wouldn't be that great anyways.
The only games that won't be done on a system are games that don't sell well enough. For example, I don't think we'll be seeing many more Sims games from EA on non-Nintendo platforms. Not that Sony's giant CPU with a console attached to it couldn't handle the Sims, just that the sales wouldn't really justify remaking the Wii version for the PS3. Any hard core multiplayer FPS is going to naturally find its way to the 360 but not because the other two systems couldn't handle it, just because the sales wouldn't be worth it. Should the Wii really take off in the mass market then games like RE5 will eventually be made for it, even if it means cutting the poly count down by an order of magnitude.
Which of the 3 specialties the 3rd party devs focus on, Cell, Live, or Wiimote, will depend on which generates the most profits for each game. I don't see what the fuss is (aside from trying to use it solely to start flame wars), none of them cover the entire gambit of gaming which seems to be all EA is saying.
