The real logical gap in the thinking here is that they are focusing on replacing the mouse but in reality, they are in fact replacing functions that can be exec

The real logical gap in the thinking here is that they are focusing on replacing the mouse but in reality, they are in fact replacing functions that can be executed simply and quickly with a keyboard. Application switching etc can be done efficiently with a keyboard. At the very least I question the wisdom of moving away from the modifier key paradigm because it is an elegant and easy method of interaction. I also believe that as we engage more and more of the body in a control interface, for it to be natural it is going to need to mimic real-world interaction so that we can rely on our lifetime of experience interacting with physical objects. The better solution in my opinion would contain: -2 mirrored screens so that the one under your hands can be glanced at for reference as well. -A UI approach that allows you to interact with objects and windows in the same ways you would with real objects. (Grabbing the edges moves the window, pushing down on it 'sticks' it in place, etc.)