Now this is a typical geeky product which appears cool, but without much practical utility. The Canon 3-in-1 mouse is not only your typical 1,000dpi mouse but also a calculator (10 digits) and a numeric pad. The mouse not only performs regular calculations but also allows you to send numeric data to your computer. In addition, you can use it as a numeric pad when you’re not making use of the mouse functionality. The Canon 3-in-1 mouse will be launched in July in the Japanese market for about $32.