It seems like Capcom has decided to port over Dead Rising to the Wii. Why port a 2 year old game is beyond me. But I had fun with the game on 360.
From what I could gather from the web and the scans.
-Downgraded visuals. As expected.
-More small scale feeling.
-Maybe a new camera angle to make the players feel more threatened.
-New stages and bosses and items.
-Picture taken may be out.