Apple's new maps app is "a step backward"?
...but it can do voice prompted turn by turn navigation. From Walt Mossberg's Wall St Journal review of the new iPhone 5:
The biggest drawback I found is the new Maps app. Apple has replaced Google Maps with a new maps app of its own. This app has one huge advantage over the iPhone version of Google Maps—it now offers free, voice-prompted, turn-by-turn navigation. Google had made this available on its Android phones, but not the iPhone. Apple’s navigation worked very well, with clear directions displayed as large green highway signs.
But the app is in other ways a step backward from the familiar Google app. For instance, while Apple’s maps feature a 3-D “Flyover” view of some central cities, they lack Google’s very useful ground-level photographic street views. And they also lack public-transit routing. Apple will instead link you to third-party transit apps. Also, while I found Apple’s maps accurate, they tend to default to a more zoomed-in view than Google’s, making them look emptier until you zoom out.