Apple on Thursday unveiled a new version of its iTunes U product from a press conference in New York City. Apple’s Eddy Cue was on hand to reveal a new iOS version of iTunes U, bringing users an iBooks-like interface through which they can access iTunes U content. iTunes U has served 700 million downloads to date, and it has primarily been used for lectures. The new version of iTunes U gives teachers a variety of new tools to create and manage curriculums, and they can also use the app to give assig...