Okay, it's no secret that I'm a total Apple fanboi, but even the most die-hard PC fan has got to admit that this is downright impressive! They've managed to cram the functionality of a 4-button mouse with a 360 degree scroll ball into a device that, technically, is still a 1-button mouse. Impressive engineering, guys! I'd actually like to pick one up tonight if I can afford the time and $. I hope they start shipping these as the default mice with new machines.

Yes, they work with PCs too.

On a different-yet-related note, it amazes me that there are still people out there who think that Macs don't support multi-button mice. Hell, they've fully supported multi-button USB and BlueTooth mice longer than PCs have!