How does it solve that? Walk me through that, my imagination must be lacking.
You seem to be imagining a trackpad that doesn’t have to be touched, that can consequently track a much larger area and that can track 3D space. That’s pretty sweet, I guess, if it works reliably and is as precise as current trackpads but it doesn’t seem all that amazing.
I think that might work ... a holographic keyboard and trackpad that hangs in mid air and on any surface pointed at it. Try doing typing motions in mid air or with your arms on arm rest with your hands drooping down end of rest(arm rest scenario would be a split keyboard). The latter is more comfortable then what I am doing now - wrists and hands on metallic/plastic laptop and keyboard.
Also, remember Kinect has a fairly solid voice controlled engine. I know many people who use the Android talk to text function regularly. I wouldnt mind using similar tech to execute searching, reading and communicating via text on the web.
You seem to be imagining a trackpad that doesn’t have to be touched, that can consequently track a much larger area and that can track 3D space. That’s pretty sweet, I guess, if it works reliably and is as precise as current trackpads but it doesn’t seem all that amazing.