Although iOS 6 looks a lot like iOS 5 at a glance, it represents a huge change to some of Apple’s core iOS features. Apps and services like Maps, Mail, Phone, Notification Center and more have all received new features worth talking about, while several new ones have been introduced.
The great thing about it is, is supports a whole host of devices, including every iPhone from the iPhone 3GS onwards. Some devices won’t get access to all features, however. Only the iPhone 4S and the first- and second-generation iPads will enjoy turn-by-turn navigation and 3D maps..