Apple announced this morning that iTunes U content downloads have now exceeded one billion. iTunes U features “the world’s largest online catalog of free educational content” from schools and other learning organizations, including lectures, books, assignments, quizzes, and more. Apple claims more than 1,200 universities and colleges and 1,200 K-12 schools and districts now host more than 2,500 public and thousands of private courses on iTunes U. “It’s inspiring to see what educators and students of all types are doing with iTunes U,” Apple senior vice president of Internet Software and Services Eddy Cue said in a press release. “With the incredible content offered on iTunes U, students can learn like never before―there are now iTunes U courses with more than 250,000 students enrolled in them, which is a phenomenal shift in the way we teach and learn.”