"A metro app" being the keyword. I regularly use ten applications at once, keeping most in the background with a little bit of the window visible so that I can see state changes. Metro breaks this usage pattern.

Well yeah, kind of. Microsoft managed to pick the very worst UI choice Apple has made in the last year and doubled down on it.

Yes, that's correct, but I am not willing to jump through hoops just because MS has made bad choices for me.

At work, I use Win7 (and I will for as long as possible), at home I use Macs. Problem solved.

You have obviously never used multiple windows at once. At work, I have two 24" screens and regularly have lots of open windows at once. If even one of the programs I use are a "metro" program, I am not able to use regular windows programs at the same time. This problem will only get worse with time, and is a showstopper for me.

Windows 8 is the solution to Microsofts problems, not the users' problems. That kind of disrespect for your customers never pays off.