I've talked quite a bit before about the growing "second screen" phenomenon, where iPads and other mobile devices are used as a second screen while either working on another computer or watching television. And with the biggest event on television yesterday, there was likely a lot of "second screen" viewing going around. ZDNet's James Kendrick says his was one of three iPads around the coffee table at his Super Bowl party, and with tens of thousands of tweets per second going out during the most interesting parts of the game, Kendrick's experience was undoubtedly not unique. Car maker Chevrolet actually participated in the event with the Chevy Game Time app, which not only posted ads available on the iPad the second they went live on the TV, but also offered up contests and more interactivity during the show. And the NFL and NBC famously streamed the whole event live on the Read More