Dr. Fitness and the Fat Guy are a pair of wacky radio personalities who stream on-line and in Atlanta over the air. They like to have me on because a) I know about gadgets and b) I’m fat, so they can try some of their tricks on me. Last week I went on to talk about all sorts of things including the iPod Touch, the Fitbit, and how I look like a polar bear on land but glide like a seal in the ocean.