The new version of iTunes, 10.3, has been released and is available here. This beta version of iTunes utilizes some of the cloud features demoed yesterday, including downloading pre-purchased content.
There’s not a lot different. The main talking point is in the image above (click image for full size view). In the iTunes store you can now click a ‘new’ link on the right hand side called ‘purchased‘. This takes you to the screen in the image which lets you access any books or apps purchased on your iDevices that aren’t on your computer. You download them by clicking the cloud icon. Simple.