The spirit of innovation. Convergence. Convenience. My hat is tipped to the Canon X MARK I calculator-cum-mouse for embodying it all. But it's not satisfied with mere mousing and calculating; it also serves as a Bluetooth number keypad for your PC or Mac.

And as Gizmodo points out, this odd little gadget is http://gizmodo.com/5016125/mouse+calculator+numeric-keypad-mashup-is-from-canon-confusingly - not the first time Canon has attempted this Holy Trinity.

The X MARK I will be available later this year in the U.K for �40. Hopefully it will make it across the pond.