Add to the list of things that have been turned into USB peripherals: ultrasound machines. For $5000 you can get your own ultrasound wand (I am guessing they are called wands; maybe they are called probes) that hooks up to a PC using a standard USB connection, providing road warriors with the tools they need for their on-the-go lifestyle. Now if they can just make me care about it, this product would definitely be something I cared about. Find out more On Cool Hunting.