Which is why I separated Windows from Surface
My wife went to some Microsoft training last year down in North Carolina where she saw Windows used on a Toshiba tablet, so I do know that Windows 8 will run on ARM. The fact that a Surface RT tablet has been jailbroken and the full Windows 8 resides already on that tablet only with the desktop disabled clearly says Windows 8 can also run on Atom--albeit under the Surface RT's hardware specs it doesn't do all that well. In essence, Surface is Surface with two different grades of hardware designed for two different purposes. On the other hand, Windows RT is just the "Modern UI" interface portion of the full Windows 8 (not necessarily Windows 8 Pro) which doesn't need the same hardware capacity as the desktop.