It's not the first time we've seen one of these (and we have a feeling it won't be the last): the iRocks MP Car IR-110 is a lighter-powered USB-host device with an FM radio transmitter. So you plug in your mass-storage based USB device, and it'll take off playing your tracks just like that. And no, while we're sure it supports the shuffle, we don't know if it has a shuffle mode (though we don't see why it wouldn't). Be warned, it can also power your USB devices, further encouraging the USB-powered gadget fetish you picked up at Engadget. We're sorry.