Yesterday, Apple's officially announced the release of iTunes 9.

iTunes 9 comes with Genius Mixes, with more than 54 billion songs to choose from, helping consumers find new music that relates to current library. Apple also announced Genius DJ built into iTunes 9 that seeks out songs and creates a playlist for endless possibilities, great for parties.

iTunes 9 also improves syncing with devices, for your iPhone and iPod Touch. Users can sync by artists, playlists, genres, and more possibilities. Apple also announced that iTunes now offers Home Sharing, allowing users to copy songs, movies, TV shows and more, for up to five computers around your house.

iTunes 9 comes with a built in application sorting feature for the iPhone and iPod Touch, allowing users to customize the layout of their device directly from their computer, without having to painstakingly move dozens of applications and games around. The built in feature should make users organize their devices a little easier.

Users will also be able to share what they are listening to or watching via Twitter and Facebook.

Sounds like some good updates to me.

iTunes 9 : Direct Download

NB: Although there is no Official Support for iTunes 9 running on Windows 7, I can confirm that it does work.