Microsoft ports... successfully?
Microsoft haven't built *any* hardware that both works and is long-lasting for more than 20 years. Its last hardware success was - and still is - the Microsoft Mouse. All other hardware projects have fallen by the wayside (Zune, Kinect, Windows Phone...) or, if still (barely) around, riddled with problems. (Xbox? Surface range?) As a result, the idea of MS successfully porting *anything* to a home-grown processor architecture has as much chance of flying long-term as I do.