Someone on Apple Insider said it best.
"Take the GUI from the failed Zune HD, take the failed Windows CE base used to build the failed Windows Mobile OS, take the failed Zune music service, and add in the failed proprietary Silverlight platform, and just for fun, lock your phones to the proprietary Windows OS and what do you get? A total failure.
The only thing they should be burying is anyone who had any say in Windows Phone Series 7 or whatever" it is called today.