I wonder if they have to be exclusive. How cool would it be to have a keyboard where you can hold down a "gesture button" or just move your hands/fingers over

I wonder if they have to be exclusive. How cool would it be to have a keyboard where you can hold down a "gesture button" or just move your hands/fingers over a certain zone and have it pick up small gestures? You'd barely need to move your hands and could probably keep your wrists in the same position. This could then do things like more natural scrolling, cursor control, obviously more complex actions. They keyboard is great for what it does, but improving input doesn't necessarily have to mean getting rid of something that works quite well and completely reimagining it.