Big mistake for corporate.
Windows 8, just like Apple or Ubuntu's unity, is trying to be all things to all people. It doesn't work in the corporate environment.
Touch screens across corporations are decades away, if they ever implement them at all.
The be-all and end-all is productivity and when you can produce a touch screen that is faster to use than a keyboard, just maybe you'll see some traction. The only way I see the possibility of wide usage of touch screens in corporations, (excepting certain applications), is if voice recognition ever becomes so good, you can simply speak your messages, or control the machine via voice. That isn't going to be any time soon, particularly across different languages and dialects.
As corporations are wedded to Microsoft, (though I still fail to understand why), I see Windows 7 as being the XP of the future, with corporations gradually changing to 7 and hanging on to it for as long as is possible.
If you're facing Windows 8 (as it is at present), there is a strong argument, given the amount of change and training required, to switch platforms totally to a new platform. SuSE for example, (a not very well documented example in the USA), can boast The University of New Mexico and The Belgian Ministry of Justice as just two such organisations that have benefited from this approach and claimed major savings. SuSE, like Redhat, offers enterprise level support, so the often quoted argument about no support doesn't hold true.
If you're looking at significant change, then you may as well choose the cheapest option that is compatible with your objectives.
Microsoft should tread very carefully. Alienating your major user base is never a wise move.
