But why do the graphics need to be comparable to the HD versions? Isn't it more than proven that people buy Wii games even if they don't look as good as PS360 versions? A good example, Call of Duty Wii which is proving to have legs.
Regarding your last paragraph, you may be right. If that's the case, they better start learning soon.
They don't. I'm just responding to you saying that it wouldn't take much work to do a Wii port. I'm saying they have to either change the game or completely work the system. You get something like Dead Space Wii or Dead Rising Wii.
And comparably, COD: WaW Wii legs aren't too great.
Why bring up Dead Rising, one of the worst ports? There are better ports which prove that it's not that hard to make PS360->Wii transitions with good results. Dead Space seems smaller in scale than a lot of those ports, so I don't think it would be among the hardest games to port to the Wii.
Regarding sales, it seems the Wii version of COD sold more than enough to make a profit, which is really what EA should be looking for too.