We're not exactly sure why anyone would ever want a designer calculator, but for those who do, Kokuyo's got you covered. The Japanese company has just announced the X-VIZ -- a super slim, matte-finished device that can help you balance your checkbook with one hand. Crafted by robot designer Tatsuya Matsui, the X-VIZ probably isn't something you'd use to carry out heavy duty operations and, at just 12mm thick, it certainly won't double as a mouse, either. But at least Kokuyo refrained from tacking on another superfluous laser or
