Miss: Apple launched Ping, a music-focused social network that lived inside iTunes, in September 2010. The service was largely ignored during its two years of existence, however, and Apple wisely silenced Ping last month. Critics had knocked Ping, which Apple touted as a good way to discover new music, for lacking Facebook integration. Steve Jobs blamed Facebook's "onerous" terms for this flaw, which no doubt played a major role in Ping's demise.
An iTunes update in October will feature Facebook and Twitter integration, and allow users to share apps, music, and other content with their social media pals. To be fair, you can't blame the post-Jobs management team for Ping, which was doomed from the start.