File this under speculation but recent information about a 'Surface Dial' and patents was revealed this morning in addition to Surface Studio. While the latter makes sense for an all-in-one Surface PC, many heads are scratching on Surface Dial.
Leon Zandman found references in some of the Windows 10 code for a radial controller that "can be paired and has haptics" for feedback. Twitter user WalkingCat posted some of the references as well with remarks about RadialController being the software for Surface Dial.
Full story from the WindowsCentral blog...
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