Most notable among the changes to iOS? A new built-in Maps application that Apple built itself, without relying on Google. It offers turn by turn directions, 3D views, and real-time traffic data. There's now lots of Facebook integration throughout the iPhone, as well as a new app called Passbook (it gathers up all your tickets, boarding passes, and other ID-card type membership passes). iOS 6 is available to developers now, and for download to consumers this Fall.