A New Kind of Laptop Mouse

What we need is a laptop mouse that can be attached to a laptop. This seems easily achievable. What we need is for it to be cordless and to lock into place in the laptop. The first thing needed is for the laptop to have a built-in infrared (is that what they use?) beamer to remove the need for a cord. That's easily done. The second thing needed is to have a shape of mouse that can be locked into a laptop easily. Probably the best shape is long and narrow and thin, like a pen but shorter. It should have a wheel in the middle and buttons on each side.