YES!!! it begins. All of the future developed 3rd party games will be primarily on the Wii then ported to 360. Just like last then with PS2 -> xBox. With a small percentage going to PS3/Gamecube respectively.
Also, The DS is getting a version simply because it has a userbase you just can't ignore.
The Wii/360 version will most likely be built ground up on Wii and have the waggle removed for the 360. i.e. best version will clearly be the Wii's.







