I remember reading ages ago that Intel's first smartphone SoCs weren't capable of running Windows because they missed a feature that Windows required (possibly a PCI bus or something similar, can't remember exactly as it was a while ago lol).
So does this mean that the latest Intel SoCs won't be able to run the full version of Windows 8 i.e. including full explorer, backwards compatibility etc? Or have Intel added in all the necessary features?
It will definitely fully support Win 8 and run all x86 software, just like any other Intel chip. Intel keep talking down ARM because those devices wont be able to do the same, so Intel's SoC must be able to run all existing PC software or they wouldn't be saying this.
The SoC Intel have for Win 8 is called Clover Trail and it's designed specifically for Windows and not smartphones, but is quite similar to Intels new smartphone SoC called Medfield in terms of power consumption and performance.
It seems that the ARM SoC's for WOA also lack certain "PC" functionality such as a PCI bus. This is what a lot of work in WOA will address. I'm sure there will be another variant of this "embedded edition" of Windows that will be made available for Intel SoC's as well.
As far as i know the desktop Windows 8 version will be the the same version that runs on Intel and AMD SoC's, there wont be any other versions, just Windows 8 and WOA, being as Intel and AMD will both have SoC's specifically designed for Windows 8.