I dunno - maybe they will. x86 processor in a smartphone is what Microsoft needs to get back in the phone game. As it stands now they've kind of lost the battle. There have been rumors floating around for several months that they might do this.

>I doubt you'll see one that can run any desktop app. But Universal Windows Apps? Many will run on Win10 today. The developer has to specify the phone as a runtime target.
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>>If I see a Microsoft Surface Phone that can run desktop windows applications I will be one of the first people in line to buy one!! I wanted to get one of these things http://www.engadget.com/2012/03/11/itg-xpphone-2-hands-on-windows-7-on-a-smartphone/ but never was able to get one before they disappeared.