first demos back in February and it looks really neat and I share many of the reviews I've been reading lately.
I actually give Windows Phone 7 a chance to succeed, however it will not depend on the operating system. It's all about the phone, the piece of jewelry you are carrying around. A great user experience consists of 2 parts, the functionality offered and the emotion attached. I'm pretty sure the hardware specs set by Microsoft and the feature set of the operating system will provide more than enough functionality. However the emotion is for a large part determined by the physical device, what are the materials used, is it shiny and does it attract girls?
Microsoft if you want Windows Phone 7 to be a success ask the device manufactures to leak some smoking hot images of the devices, so we can really get exited about the emotions it gonna give us. For your information the Samsung phone used in the reviews is NOT a great example of a hot phone.