Nice effort, but a little late
I actually own a Windows Phone (Samsung Omnia) and also quite like it. Still running WP7.5 because I don't consider the upgrade to 7.8 to be all that wonderful (I like having 8 medium sized tiles on my start screen at the same time. 7.8 can't do that anymore; either you get 6 large icons or a whole lot of small ones (or a combination)).
But the thing is; Microsoft lost my interest to develop for this phone a long time ago. When I just got it I was quite eager; got the free Visual Studio, the SDK with the emulator: everything I needed to get started. An experience I also quite enjoyed too, their tools are pretty straight forward in my opinion.
And then I tried hooking up my phone to my Windows 7 machine; I wanted to try running some system calls (so running a program on my PC which would control my phone). That's when I discovered the "developer lock". A few minutes later I discovered that Microsoft only wanted a "meagre" E 100,- / year before they'd consider unlocking my phone.
Dunno about you, but E 100,- merely to try if something actually works and if you'll like working on it is a bit too expensive for me, so I passed.
Sure; later they started their "promotions": Get a discount and only pay E 10,-. Of course you still had to cough up E 100,- but Microsoft promised that they'd refund the E 90,- at a later time. Yeah, that's something I'm so going to rely on. NOT.
I only wanted a developer unlock and not a subscription to their developers platform.
And that's where we are today. Nowadays you can get a phone unlock for free if you got a Microsoft account; you only need to register your phone.
Of course the main problem now, as mentioned earlier, is that I lost interest in developing for this phone almost 1.5 years ago. The SDK has long been removed, my Visual Studio does not support WP development and I never really felt to be missing out on something.
THAT is what Microsoft still doesn't seem to get. It's the first impression which counts.
So my friend comes over with his Android phone, he connects that to Windows 7 and what do you think he can do with it? Just about anything he likes, and he didn't have to pay anything for it either (perhaps apart from allowing Google-brother a permanent peek into his life).
Yeah, it's a real mystery why Android has become so popular with the geeks...