The idea of a virtual keyboard isn’t new, we’ve had projection keyboards in market on and off for years, but they never sold well.  But with the advent of Mixed Reality and, thanks to Smartphones, a far greater acceptance for buttons that don’t move, this concept of dumping the hardware for something else it is gaining momentum again.  Microsoft, [Disclosure: Microsoft is a client of the author] just got a patent for a new type of virtual keyboard to be used in Mixed Reality that not only has the potential to end physical keyboards, but all physical input methods including Stylus and mice as well. 

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