During Apple's annual music event Wednesday, CEO Steve Jobs unveiled the 10th major version of its iTunes media management software. Since the program now handles music, video, books, iOS apps, and more, Apple has finally revised the logo to eliminate the CD. With a slightly revised UI, the main new features include compatibility with HD TV rentals, the new AirPlay feature, and a new music-focused social network called "Ping."

Jobs noted that one of the most important features of iTunes and the iTunes Store is discovery—that is, enabling users to discover new music from artists they might not already know. Ping is designed to add discovery features directly into iTunes.

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