Some people like to take a minimalist to their desktop. But full sized keyboards and mice take up valuable desk space and if you’re looking for a way to minimize that, this keyboard/touchpad concept might be a good way to go. It was designed by Min Koo Yeo and is called "Inside Out”.
 

It looks like just a keyboard at first glance, but according to the designer, it is meant to serve dual purposes. One side is a keyboard, the other a touchpad, allowing you to interact with it, perform gestures etc.

Having such a large touchpad could come in handy, but having to flip between the keyboard and touchpad could be a pain in the butt.

Source Ubergizmo