Apple's got one of those, two. Works with circuitry built into all of their PCs & notebooks now. I'm thinking of upgrading my iMac and I might spring for one of those when I do.

Of course, ideally I'd have iMacs scattered around the house, so I'd never be away from Internet. And a notebook for when I wanted to surf from the couch. Of course, that would preclude spending money on things like the 950, the 770, food, the rent...