If you've been mid-presentation and longed for a presenter over an optical mouse, you're about to get another option. Logitech has just announced the Cube, a wireless mouse / presenter hybrid in the same small package. As a mouse, the Cube scrolls via swipe gestures across the main panel via the company's Flow Scroll software with performance similar to scrolling on your touchscreen smartphone of choice. To engage presenter mode, all you'll have to do is pick the device up off your desk and the switch is made for you. The pocket-sized accessory connects to your PC using a diminutive Logitech Unifying receiver