I'm disappointed to see Microsoft give up the UX control on their platform. I bought a Windows Phone because I like the WP UX better than Android or iOS. I'm also skeptical of the returns for Microsoft. How many users want the apps on Android or iOS but don't want an Android or iOS phone? I can see how Microsoft wants to make the software play. They want to have all the apps available on their phone so they turn away…
Material Design by Google looks great to my eye and it seems like MS is heading that direction a bit more.
And that's a good thing IMO. WP and Win8 UI really scared away average consumers who don't want to figure out a whole new way to use a computer.