Logitech Rools Out Tiny VX Nano Cordless Laser Mouse

Logitech just rolled out its VX Nano Cordless Laser Mouse, especially designed for notebooks. Its most remarkable feature is its improbably small USB receiver, a tiniest yet conceived. How small is it? Insert the receiver into a USB port, and all you can see is a tiny nub sticking out. We're just wondering how they ever crammed all that 2.4GHz circuitry inside. Neat. And how fast is that scroll wheel, anyway?