Amidst the excitement this week surrounding the release of iOS 5, Apple also quietly pushed out iTunes 10.5 on Tuesday, a relatively minor update that nonetheless adds some important features associated with the new iOS 5 release. Specifically, iTunes 10.5 is required to sync devices running iOS 5 as well as introducing support for the new iTunes Wi-Fi Sync feature and iCloud backups. Although the release notes also mention iTunes in the Cloud, this…