From what I've read, it is supposed to be very easy to disable the "metro" tiles and use a Win7 type interface in Win8. I think Microsoft has learned their lessons and knows that they need to server both the home and corporate crowds, so I wouldn't discount Wiin8 yet...
Yeah, but for me they'll have to do a lot more 'splainin' than that. A Win7 type interface on Win8 sounds like a new OS with an interface cobbled together on top of it.
Win7 has relatively quickly developed a confidence in the product within the individual consumer community. It seems to be slowly catching on in the Windows enterprise community, perhaps coupled with Sharepoint 2010. That community is still heavily committed to XP or even 2000 in a surprising number of cases I'm pretty familiar with.
IMHO, as with all new versions, Win8 will start "in the hole" with problems - it can't be avoided based on history. And it could set back what might have been a serious transition from the older versions by the corporate community.
IT folks have never been able to spend money without oversight even if it sometimes seems like it. The problem MS has now is that senior execs and their assistants everywhere have iPads - it's part of appearing very 21st Century. Using Sharepoint works just ok with the iPad.
The object lesson is IBM. IBM was the PC world in the late 1980's. Then Compaq was selling significantly more units by the mid-1990's and by 2000 so were Dell and HP. Bean-aware corporate execs with rather long stares were saying to IT folks "but I read about these cheaper PC's running Microsoft, like the Compaq I bought my kid that works great. Bring me competitive bids."
Unless Win8 represents a system with an iPad/iPhone full integration App like that promised Office App, Microsoft may find itself in the same position IBM did.
It's not hard to imagine a corporate IT world where Linux dominates the server industry and iOS and Android dominate the connected user equipment end, with Microsoft relegated to being known as the MS Office company. It could happen within a decade.
In the end, we may talk about "the PC" v Apple, but the fact is in the desktop world the real subject is Microsoft OS domination v Apple (yes, with a niche for Linux). It's whatever happens in the smart phone/tablet world that will determine how this will look a decade from now. And it may very well be the end of the desktop as we know it (something I find disconcerting).
Everything I read about Win8 looks very "me too." I'm not sure that's going to be good enough this time, compared to when Windows version 3.1 finally replaced MS-DOS.