Measuring just 0.77 by 0.57 inches, and a mere 0.11 inches thick, the drive is able to be so small thanks to the Micro UDP chip approach. UDP stands for 'USB Disk In Package' and basically saves space by baking all of the electronics into a single moulded plastic drive. So the included tethered tag is the only place a logo could go.
When inserted into a USB port the drive becomes almost invisible, letting you add 4, 8, or 16GB of extra storage to a laptop when they're introduced early next year. Pricing hasn't been announced yet, but who pays for flash drives these days? That's what trade shows are for. More here.