Conceptually, I see this as a very good idea. If it can be bluetoothed to PC’s, smartphones, tablets, etc., you could either do away with or at least not have to view a fixed monitor or a small screen. Sure it has downsides, but I like the freedom and convenience it would allow.
Next, we need to conquer those itty bitty keypads.
I am hoping I will live to see the direct brain implant thus doing away with all input devices. I just thunk it and it happens and all is displayed directly in the brain without need for external devices.