I have many Win apps, but didn't want the restrictions of RT. 8.1 is a snap to learn, and everything works seamlessly.
I have two On Stage mini booms for the ipad and Surface 2 attached to the back of my stand so I can see them low and straight on.
BTW the mic stand attachment from On Stage fits both size openings. I know because I use them on different stands. It expands as you tighten.
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pa4X 76 ,SX900, Hammond SK1, Ketron SD40,Ketron Event X Centerpoint Space Station, Bose compact