Nice Idea, but it'll never fly
I like Windows Phone. I've used it since I got a HD7, and found it to be FAR more reliable than the Android handsets I've also had at the same time. I've never had to wipe my phone because of some weird error that nobody knows what to do with. It's also quick, and simple to use. Actually easier than iOS. It's not the most cusomisable OS ever, but after the abortion that was Windows Mobile I'm not surprised MS went as far as they did to lock it out.
Before I got my current Mobile (Lumia 920) I spent 8 months with various Android Handsets and an iPhone. None of them were as nice to use In My Opinion. The iPhone was frustrating for what it didn't do for me, and the Android handsets were irritating in their need for apps that had a habit of saying "****** has stopped", and giving me nothing but an option to report or OK. Well yeah,but WHY did it crash? If you're telling me it's crashed, tell me WHY rather than leaving me to guess.
Windows Phone on the other hand has never given me an App Crash, it gets rebooted maybe once every 3 months, and it's no slower at that age than it is straight out of the box.
Different strokes for different folks, and no mobile is suited to everyone, but the majority of people I know that have lived with Windows Phone for more than a couple of weeks turn in to "Out of My Cold Dead Hand" people. The others tended to have a particular app they wanted, or just wanted the latest shiny shiny iPhone/Galaxy-S.