If you do a lot of number crunching on a laptop, you'll know that entering strings of numbers using a laptop keyboard can be a real pain. Full sized keyboards have a separate numeric keypad on the side, but if you're an accountant who uses the average laptop, you're screwed.
This combination calculator/mouse from Canon could be just the trick, working both as a stand alone calculator and a numerical data entry keyboard, in addition to being a three button scroll laser mouse with Bluetooth connectivity.
The biggest question seems to be what this combo should be called. I propose mouseculator.
The Canon X Mk 1 mouseculator will be available next month in the UK. No word on US availability.