Startup Idea : Mouse on a keyboard

Currently, majority of people uses PC in such way that they type on a keyboard and use mouse for pointing at things. This involves usless movement of the right hand from and to the keyboard, what is imo useless and counterproductive. Some substitutes for the mouse exist such as the touchpad or the joystick. I believe neither of the two is a suitable substitute for using the mouse. I would therefore like to see a product that would enable us to use the mouse WHILE having our hands in a typing position on the keyboard - some kind of sensor for the right hand perhaps. Try typing and then just moving your right hand in the exact gesture as you have during typing to see what I mean.