It's a calculator. It's a wireless mouse. It's a Bluetooth numeric keypad. It's really bizarre. Canon's X Mark I Mouse Lite takes everyone's favorite desktop rodent and tries to make it all fancy like, filling that wasted space below the mouse buttons with a calculator -- monochrome LCD and all. Except that the unused space below the mouse buttons isn't wasted at all -- it was designed for resting palms, not poking fingertips. The result is a mediocre mouse paired with a mediocre calculator, for $60. Sadly, it's not nearly as elegant of a solution as it may appear to be, and after a couple days of use, we were ready to switch ba
