Fifteen years ago, Steven Jobs appeared onstage at the 2001 Macworld Expo to usher in a digital music revolution. Jobs, the late Apple founder, announced the launch of iTunes. In so doing, he changed the way the world consumes digital media. With billions of pieces of entertainment purchased, Apple, with its iTunes distribution model, has blazed a trail that innovative entertainment companies see as an opportunity to provide content to consumers with speed and agility.