Apparently it will not be a winner in Geekdom.  But, Geekdom is but a small part of the market.  Ludditedom will make it a financial success, and thus a significant player.
		
		
	 
I think the Luddites are why Windows ARM tablets fail.
Apple succeeded in getting around the Window's hegemony by setting the expectations right: 
An iPad is not a computer, it is an iPad. That means that Grandma Joe's Quickbooks software doesn't work, because it is not a computer! Instead look over here Grandma Joe at all the pretty sudoku apps an iPad CAN play.
Meanwhile, if the tablet says "Windows" on it, then Grandma Joe probably assumes it IS a computer like her Windows desktop. But unfortunately for Mrs. Joe despite this tablet's Windows label her Quickbooks won't work. The expectations when she bought it was that she was buying a Windows computer, and so even if the Windows tablet gives her exactly what an iPad can, it is worse than the iPad because at least the iPad lowered expectations first.
If MS REALLY wants ARM Windows to be successful they will rebrand it something else, and they will try VERY hard to separate those machines from "real computers." But of course this is MS we are talking about, the company that exposed 32 bit and 64 bit to masses (dumbest thing ever, 7 should have only been 64 bit), so I expect failure on the marketing front which means failure for Windows ARM tablets.