What's New in iOS 5
iOS 5 might be the most popular version of Apple's mobile OS yet. When Apple released it as a digital download through iTunes on Oct. 12 the heavy demand almost crashed Apple's servers.
Available for the iPhone 3GS, iPhone 4, iPhone 4S, and all iPads, this update includes more than 200 enhancements for a reasonable price--it's free. This visual tour focuses on 11 major enhancements and four new apps introduced with iOS 5.
Another welcome feature in iOS 5 is over-the-air Wi-Fi syncing between your iOS devices and iTunes on your computer, but iTunes has to be running on the computer. Correction: Due to an editing error, an earlier version of this page said that tethering was necessary. We apologize.