Speaking of iTunes, Apple also in September. ( Macworld rated 3.5 out of 5 mice ). The biggest new change in iTunes 10 was a . Apple’s attempt at a music-based social network, tied to iTunes, wasn’t exactly universally adored, and seemed to be .

Since then, Apple has made some changes, including (and killing the Genius Sidebar in the process), , (and bringing Genius back to the sidebar in the process), and to Ping.

Another thing to happen as part of the Apple TV/iTunes 10 updates was Apple adding . For $1, you can now rent a TV show on your iTunes 10-powered Mac or PC, or your new Apple TV. As with movies, which the iTunes Store has been offering for rent for some time, you have 30 days to start watching a rental. But unlike the 24-hour window once you start watching for movies, TV shows give you 48 hours to complete your viewing experience. (Odd, I know, since movies are longer than TV shows, but that’s Hollywood for you.).