First of all, you don't have to move your hand or pinch "on" something for most tasks. The ones where you do move your hand, the range of motion needed is actua

First of all, you don't have to move your hand or pinch "on" something for most tasks. The ones where you do move your hand, the range of motion needed is actually pretty small. You can have your hand in your lap or neutral on an arm rest, and pinch there. Hand position doesn't matter. Anyways, this is going to be indispensable on the plane and for frequent fliers. Having a full 20 foot cinema experience? Being able to quickly pause and interact with an attendant or the person next to you without taking it off? Killer.