Re: Question for you enterprise chaps
It's more a matter of conservatism and long planning stages, resulting in Microsoft "lemons" being squeezed out (sorry) before any deployment happens. IT is there to support the business. Disasters happen when the tail is allowed to wag the dog.
Most enterprises avoided Vista altogether because they were happy with XP for the forseeable future, and their techies were able to say "don't go there" before any serious commitments were made.
Many enterprises are still migrating XP to Windows 7. Many would prefer that XP remained viable forever, but Microsoft have hit the XP kill switch. There's no reason that Microsoft couldn't have incrementally improved XP, including replacing its kernel, without inflicting a painful migration. Or have given us proper migration tools for going from XP to 7. So that was perhaps the first sign of the rot setting in at Microsoft.
The posts above should give you a pretty good idea of what enterprise techies are telling their bosses about Windows 8. Soon, we'll be reading about what happens to the bosses and companies who override their techies because they prefer to believe Ballmer's promises. It'll be interesting. I wonder if it'll take down a bank? (Kidding - I hope). Most companies will wait and watch for now. It's been a good strategy in the past.
IMO "Windows 9" will be the last chance saloon for Microsoft. If they EOL Windows 7 without providing a Windows that enterprises are happy with, the decision will be taken that if there's got to be a really painful migration, then why should it involve Microsoft at all? Until then there is still time for Microsoft to fix things.
Sooner or later if Microsoft carry on the way they are at present, a big company with deep pockets and a long-term plan will decide to challenge Microsoft with a Linux-based Enterprise Desktop and some heavyweight migrate-from-Microsoft support. A company like IBM or Samsung or possibly a company from outside IT altogether. (Anyone remember what Nokia did before entering the mobile phone business? )
Years ago I watched as Digital Equipment self-destructed because of managerial greed, incompetence, and hubris. Now I feel that Microsoft is treading the same path to corporate oblivion.