I don't see how Microsoft is killing the Desktop user. I mean, if you don't care for full screen apps, just don't use them. The Start Screen can be used to organize your programs and see what you have installed better than the menu control. The Taskbar takes that role as well. I wouldn't put Windows 8 past the common user. If they see something new and shiny, it sparks interest. Look at apple's ipad, a big shiny itouch was all it took to get us to this point.
I understand you're a big desktop user, I am too. Literally, the first thing I do when I start up is launch about five different programs in Desktop. I launch the Weather, RSS, and Stocks app as well. That's just idle random time, that's not serious using. It seems you think that Microsoft is going to be abandoning the Desktop altogether to desktop users, that isn't true.
I like the Metro interface because it puts relevant information in a simplified, polished view. I mean, I enjoy watching the HTML5 video background in the Weather app when I see the week forecast. I don't need a window in IE to take me to an MSN weather site anymore. It's clean and usable. I also like switching between views, apps, and going into the Start Screen, the animations are of Metro design are quite different and new to what I'm used to.
I dislike android because I believe it's simply a jailbroken iphone with the droid being the quintessential android and other phones being like the descendants of Cain; disunified and hideous and unstable. I can't stand to use androids because there are three different versions out there with different navigations, different skins, and just flat out confusing. I find the Windows Phone 7 to be much better because not only does it solve that usability issue, it puts people and relevant information first. The interface is clean, different, and very fluid. Unlike android where it's an iphone interface on top of an old blackberry settings menu.
But then again, it's all a matter of taste. If you liked Windows Mobile and android, it seems like you tend for particular customizations. That's ok. But really, comparing interfaces, WP7 hands down wins. The average android user is marveled by it.
To add on to your comment about Microsoft trying to sell devices with Metro design so they can get WP7 users and such, apple has done that already. Their ipad and iphone have done the reverse. You can see a trend of people spending a good thousand dollars on mac crap because they were satisfied with those interfaces. They're just condensed version of mac os. There isn't a real reason why people are going to macs other than that. Windows is stable to the point where there aren't those performance or security concerns anymore like with vista. Interfaces matter.
Let me clarify a few things:
(a) In organizing programs and workflow, the Metro-style start page is not efficient as the desktop. If you want an animated application for the weather (are you really kidding?) what is wrong with dozens of desktop gadgets doing just that and which do not require any serious amount of desktop place?
(b) It is visual unappealing. It is very boring and it lacks style.
(c) Its customizability is substantially less than that of the desktop
(d) It simply gets in the way. Moving out of the desktop brings up this lousy screen again!!! No way of getting rid of it.
Unlike you, I really like Android. ICS actually shows to MS what a great interface looks like. In fact, with ICS one can fashion a start screen that resembles Win8 and then some. By the time Win8 comes out, there is going to be a veritable flood of ICS tablets are ridiculously low prices. I just do not think that MS would find a lot of buyers for these tablets and if users do not embrace Win8, then MS would be buried not only at the desktop but also in the mobile space. If it collapses badly, I can see Google muscling up Android to take over the desktop and it may make huge inroads.
With Win8, MS is taking a stupid gamble by abandoning its base in going to hunt for consumers. It was done so with WP7 with very poor results. In the mobile space, it abandoned millions of users of WinMo in the enterprise and all of them essentially have moved to Android. Thus, while in the beginning of 2010, MS had a 13% market share (all WinMo), it is now at 1.5% with WP7!!! The reason is quite obvious. Far superior hardware, excellent software and great business tools (access to the file system and encryption). Plus, even with the Mango update, there is no support for high resolution screens, full HD video, and most importantly, LTE. And there is not going to be any support for these until well into the next year when WP7 would have to compete against many ICS phones and iPhone 5.
Thus, disaster looms for Microsoft. By forcing desktop users to be exposed to "Metro" in order to leverage its desktop dominance to the mobile space, MS is likely to lose it all.