Windows 8 will definitly be a successful OS... on moble hardware... as long as Apple will not release an x86-64 version of his own IOS!
Then, Windows will DIE!
However, did you even try Windows 8 on a "non touch" desktop/laptop (even a small factory one)?
To be polite: It's just a pain in the neck!
Just my two cents (and I'm far to be an Apple boy- just too costly for me).

































