Apple released iOS 4 for the iPhone and iPod touch on Monday. The major OS upgrade includes several new features such as third-party multi-tasking support and Bluetooth keyboard support.
iOS 4 also includes features such as the ability to group apps in folders, Home screen wallpapers, a unified in box in Mobile Mail, and more. More iOS 4 feature highlights are available at TMO, too.
For tips on preparing for the upgrade, check out TMO’s iOS 4 Upgrade Guide, and our Quick Tip on checking to see when the upgrade is available.
Installing the OS upgrade requires an Internet connection and iTunes 9.2, and isn’t compatible with the original iPhone. The upgrade is available as a free download.