MoGo Dapter - "World's smallest Bluetooth adapter"?

Newton Peripherals, the outfit behind the MoGo Mouse (and that new ExpressCard-compatible MoGo Mouse X54), also launched the MoGo Dapter, which they're claiming is the "world's smallest Bluetooth adapter". We're taking them more or less at their word, especially since they don't mention any dimensions in their press release. Should be out in the second quarter of this year with a retail price of $49.99.