It is, of course, a given that the iPhone is falling behind, right? Sure, it is. (Just play along.) The only question left to answer, therefore, is why is it falling behind? And who would we turn to to answer that question than Mike Elgan?Related StoriesBunch of new products will lift Apple from doldrums, analystiPhone v Galaxy S4: iPhone beats Samsung Galaxy S4 on TwitterPotential iPhone carriers can't mee
