Though iCloud proper won’t be out until the fall, users who want to try out a beta of Apple’s new iTunes in the Cloud feature can do so by downloading the new iTunes 10.3, available from Apple’s Website.
With iTunes 10.3, users will be able to browse past iTunes Store purchases and re-download them to their machine or iOS device, if the files are not already present. (You can download iTunes items for up to 10 devices registered with your Apple ID.) In addition, you can enable automatic auto-downloading across all devices, so that any song, app, or book you buy on your iOS device will download to your Mac, as well.
More: http://www.macworld.com/article/160340/2
With iTunes 10.3, users will be able to browse past iTunes Store purchases and re-download them to their machine or iOS device, if the files are not already present. (You can download iTunes items for up to 10 devices registered with your Apple ID.) In addition, you can enable automatic auto-downloading across all devices, so that any song, app, or book you buy on your iOS device will download to your Mac, as well.
More: http://www.macworld.com/article/160340/2