No reason for gorilla-arm when touch is an alternative interaction mode and not a required one. You still have trackpad and keyboard. You can dynamically switch modes depending on the action.
Gorilla-arm was a fear based on the naive idea that if you had touch, you would be required to only use touch for every action.
Gorilla-arm was a fear based on the naive idea that if you had touch, you would be required to only use touch for every action.