I've posted about the "second screen" idea before -- there is a growing trend among iOS and other mobile device users to both watch television or play games, and have their tablets or iPhones open and running apps related to that TV or gaming content, essentially using two screens at the same time. Viggle is another new app that is apparently going after that user, according to this article in the Denver Post, but with a new twist: They want to allow users to earn money by watching television. As you might imagine, the math doesn't quite work out yet; at Viggle's current rates, you'd need to watch a few days worth of television to earn just one $5 gift car