USB 3.0 is the new standard for super-fast data transfer between your computer and peripherals. And this PQI Traveling Disk drive is purportedly the world's smallest USB 3.0 thumbdrive.
Yes, they've taken the latest tech and made it ludicrously small, which should act as catnip for a certain subset of tech geeks. You can get it in sizes ranging from 4GB to 32GB, which is a pretty crazy amount to fit in something that looks like I'd lose at the bottom of my jeans pockets. But hey, you asked for small!