This fanboyism cracks me up. If Apple and Valve managed to do it for "desktop applications":
Then MS could surely do it too if they wanted. Stop searching for dumb excuses.
So, anyway, is there any good reason to upgrade to Win 8 on the desktop now? I don't see any. Oh, wait, yes, faster boot and some lowered system specs.. but you get the forced 1.0 Metro annoyingness in return... raw deal.