In iOS 6, Apple no longer uses Google’s traffic, transit, or street view features, switching instead to their own traffic data, and adding turn-by-turn navigation and a 3D Flyover view. As a result, features will be lost in dozens of countries:
Transit: Removed from 51 countries with 4.8 billion people.
Traffic: Removed from 24 countries with 2.4 billion people.
Street View: Removed from 41 countries with 2.9 billion people.