In theory.
imho a pretty realistic theory with the hundreds of thousand of money hungry ddfers, fw'ers sd'ers etc that will try to get the last cent of value out of the touchpad..
the htc hd2 runs like 10 operating systems and the touchpad is running cm9 already and has a pretty solid team of developers, playing around with new features all the time..
i wouldnt be surprised to see windows 8 ported in the months following win 8 release..