The OM wireless optical mouse is a flat surface the size of a hand, only 10 millimeter thick at its highest point. In theory, it makes your hand relax. In the practice, it's a very cool concept.
Apparently, most of the hand strain comes from the sides of current mouses. Buy getting rid of them, the OM would solve this problem, the designer says. Whatever. I just think it looks great. [Yanko]