Ah, fall. When the days grow shorter, the air gets crisper, and we finally get American football back after a purgatory of endless midseason baseball games and Olympics roundups about Bob Costas’s dimples. I’ve been obsessed with football — both college and the NFL — since I was a little kid, so this is unquestionably my favorite time of year. And there’s never been a better time to be a fan. Apps galore for iPhones and iPads have now made it possible to watch games on the go — and out of original broadcast market. A word of warning: several of these applications only work in the U.S. market and with a subscription to cable or satellite. So no fair complaining about that like the App Store critics do.