Along with releasing iOS 5 beta 7, Apple has also pushed out an developmental update for iTunes, bringing iTunes to version 10.5 beta 7. Meaning if you are a developer you can download iTunes 10.5 beta 7 for Mac OS X and Windows (Windows 64) by logging into your developer account.
This new beta version of iTunes was released for compatibility with the iOS 5 beta 7 firmware. If you have installed iOS 5 beta 7 on your iDevice, you will need to ensure you download iTunes 10.5 beta 7 to avoid errors when syncing your iDevice.
As always, along with compatibility for the iOS 5 beta 7 firmware, iTunes 10.5 beta 7 improves upon the stability of using iOS 5 features such as wireless syncing.
We will keep you updated if anything major has changed in this new beta version of iTunes. Until that time enjoy iTunes 10.5 beta 7!