VerticalMouse

At least it is a different perspective on mouse. WOW-PEN joy is claimed to be more ergonomic PC mouse since it provides position of hand-shaking; but I guess if you have to keep your wrist in some upright position, in comparison to the traditional flat hand, then may be you would put more energy to keep it that way. Especially when your hands are idle, still you have to maintain the upright position. there are some other upright PC mice. May be if there could be less material to grip (flat or vertical), then less energy would be consumed; I am talking about the future PC mice.