I disagree with you. While windows has its place, for a mobile device on the go, legacy x86 means nothing to me. Android apps have far more usability for touch for basic tasks such as email, browsing, netflix, youtube, so on and so forth.
Don't get me wrong, I like windows and windows has a place. I also find BT windows tablets interesting. Honestly though, I far prefer android or iOS for tablet form factors. The applications for mobile operating systems are better designed for................mobile. Period. IMO. I don't really care about legacy software that is largely "half a$$" in terms of mobile development. There are a few exceptions, but by and large, actual mobile operating systems do the mobile touch thing better. Using an ipad for a year or so really underscored that fact for me; I used windows on a tablet and it just felt like the apps weren't suited for the form factor.
I mean if I wanted to use netflix on an 8 inch tablet. Using netflix in a browser window in windows 8.1 on a tablet is just LOL. It isn't even comparable to the iOS ipad app, the latter is just far better and more intuitive to use. While the windows 8.1 version is just a pain in the neck. Having to touch on super small icons that aren't even a proper fit for the resolution. With iOS , everything is designed for the device. That's the difference. Windows apps aren't designed for the device. They're designed for everything. That means they're good on desktop and SUCK for mobile tablet form factors. Or they're good for mobile tablet but SUCK for desktop.
Now if you're sitting around the house and have a spare keyboard to hook up, maybe the windows tablet is great. For someone on the go, android is better for mobile. IMHO. So is iOS - it is better than android (for tablet form factors, anyway). Now, like I said, I like Windows but there are just some things it does worse as a "mobile" operating system. The legacy x86 stuff is a crutch really. The legacy x86 stuff means that software works on everything and is a jack of all form factor trades, master of none. Whereas with iOS everything is designed specifically with the ipad in mind. Sorry, but apps designed with the form factor in mind will always be hands down superior to an application designed for "everything". That's my take on it. So i'll use windows on ultrabooks, laptops with touchpads and keyboards. But for a keyboardless and touchpadless tablet? Screw that. iOS and android are just better for those form factors.
So, basically, I see android for BT as being a good thing. Windows has its place. It is the best desktop operating system. The compatibly for "everything" makes it half baked for most actual touch driven applications, however. And when you're using an 8 inch tablet on the "go". Without a keyboard or touchpad. Screw windows. I'll take android anyday since android/iOS apps are better suited.