I suspect MS has issued this metro version of Windows 8 as a Consumer Preview just to test the strength of resistence. To launch Windows 8 in this format would be commercial suicide. This Consumer Preview has to be the best case ever for not upgrading Windows for the enormous worldwide installed base of desktop users. A strategy of incorporating the best features of the new OS into a Winows7 Plus version and launching Windows 8 as Windows Metro would have a far better chance of gaining new users without destroying the existing base.
As someone who has migrated from early versions of MSDOS through every iteration of Windows this is the first time I have reached the point where if the Consumer Preview is what we are going to get then I will still be using Windows 7 long after user support has ceased.
I wish I could be sure that MS would listen. Their obstinate approach of forcing the Ribbon on Office users and leaving it to third parties to offer alternatives show how they can kill their own golden goose without even trying! I know plenty of people who cling to Office 2003 and will never upgrade just because of this factor. I have little or no respect for Microsoft's basic marketing ability.