I know many people atm see the full blown PCs as a dieing species, but I have to disagree. Even though I myself do most of my home computing tasks on a tablet now I would never want to live without a high powered PC at home. For the forseeable future there are just too many things a tablet can't do. Microsoft would be wiser to focus on their strengths on the desktop market instead of sinking billion after billion into unsuccessful attempts to gain a foothold into the mobile market.
Windows 7 had the genes to be the foundation for a near perfect desktop OS, and instead of using this potential they bastardize it with their metrosexual WP Gui. I have played with both Windows 8 previews and I find them totally unacceptable as a Desktop OS. If the finished W8 will really look like this and lack even a start menu, I and many others will stick with W7. Maybe we are really seeing the beginning of the end of M$.

Sorry for being somewhat off topic.