Touch is natural and direct manipulation. It looked it would win over mouse. But it didn’t. Why?
I think mouse utilize hand/finger power better than touch.
1) Efficacy – Short moving distance of the Finger/hand subtle movement of mouse does not lead to fatigue, while touch can lead to fatigue.
2) Mouse has two mode of movements (a) rough cursor positioning by hand movement (b) micro movement. Hand&Finger can do both. Touch, on the other hand, only utilizes rough positioning. Touch is poorer language than mouse.
I think IT industry should explore hand/finger power more.