I believe GH3 Aerosmith to be the first major BIG game released simultaneously on HD Consoles and Wii and not suffering from having a different version for the Wii than for the HD consoles ( there have been others before but no real big franchise like GH).
On top of that I would say the game should easilly tap into the more casual Wii customers.
And still week 1 NA we get :
Xbox 360 : 136k units for a 11.9 Mill install base
Wii : 96k units for a 12.69 Mill install base
PS3 : 67.9 k units for a 5.31 Mill install base.
Base on the install base and the fact that you would believe a game like GH would more easilly sit well with Wii owners the week 1 Wii sales look very lackluster to me...
This might explain the unwillingness of some developers to invest into development of high budget Wii titles.
I can't even remember if we ever had a game sell less on the PS2 than on the Xbox or the GC from the time the PS2 started to dominate the market...
PS3-Xbox360 gap : 1.5 millions and going up in PS3 favor !
PS3-Wii gap : 20 millions and going down !
