How quickly have MS scraped off Mo6 from CE and glued a new Applesk interface, so quick they have lost Copy & Paste.
You didn't think this was a new OS?
The last * new * OS commercially released by MS was Windows CE, 16 November 1996; 13 years ago, upon which WinMobile resides.
Windows 7/Server2008 is based on 1993 NT3.1, it's NT 6.xxx
Singularity is a new MS OS. But that's not even intended to be commercially released.
WinCE isn't bad apart from one size fits all for driver, Original stupidity of copying Win Desktop GUI and limited number of processes. Arguably better than iOS4 or Linux/Android. It's just that in entire history of CE/Mobile MS have wanted to have "one size fits all" GUI experience and been clueless about Gadget GUI maybe till the Zune.
So is it really a Zune with a phone, really running 1996 CE? If so the next version, the finished one might be quite good if the Mobile & Gadget division isn't closed first.