no
There is a Guitar Hero for Wii, but it isn't exclusive to Wii.
For wii you don't need the guitar, you can just use the controller.
yes
According to wikipedia you can use a wii remote plus with guitar hero. http://en.wikipedia.org/wiki/Wii_MotionPlus
No, you can't use your Rock Band Wii guitar for guitar hero or vice versa. You can't use rock band guitars on guitar hero...but we use our wii guitar hero guitars for both rock band and of course guitar hero. You cannot switch out drum sets. We have had to buy both sets, rock band and guitar hero.
The Guitar Hero 3 guitar is not compatible with Rock Band on the Wii. And the Rock Band guitar is not compatible with Guitar Hero 3. You can try anyways but I'm pretty sure they don't work.
No, not for Guitar Hero (Wii) nor Rock Band (Wii).
yes you can but you have to buy it on wii or Nintendo
yes
It is compatible with Guitar Hero: Aerosmith and Guitar Hero: World Tour. Yeah, they use the same exact controller. The Aerosmith one just has a different faceplate
It depends. There are lots of Guitar Hero Wii games