Apple released iTunes 10.3 which includes support for iTunes in the Cloud. Music you purchase from iTunes now can be pushed to your other iOS devices, and you can download past purchases as well. The full iCloud is set to release this fall with iTunes 10.5. Meanwhile you can update iTunes to version 10.3 to get a taste of things to come.
Introducing iTunes in the Cloud beta. The music you purchase in iTunes appears automatically on all your devices. You can also download your past iTunes purchases. Where you want, when you want.
• Automatic Downloads. Purchase music from any device or computer and automatically download a copy to your Mac and iOS devices.
• Download Previous Purchases. Download your past music purchases again at no additional cost. Your purchases are available in the iTunes Store on your Mac or in the iTunes app on your iPhone, iPad, or iPod touch. Previous purchases may be unavailable if they are no longer on the iTunes Store.
iTunes 10.3 also adds Books to the iTunes Store, where you can discover and buy your favorite books on your computer and automatically download them to iBooks on your iPhone, iPad, or iPod touch. This version also allows you to use Automatic Downloads with apps and books or download previously purchased apps and books from your computer or iOS device.
Updated: Apple has pushed out iTunes 10.3.1, a day after releasing 10.3. This is likely to solve the device sync problems reported by users in Apple forums.