One of the most important change in iOS 6 is the Map application. Now here is a video compared Apple's new Maps App on iOS 6 beta 1 with Google Maps on iOS 5. Check it out.
In the video, the author wasn't able to show us the 3D capacity of the iOS 6 Maps, but in fact some hacker knight has worked out the solution to enable older devices to get 3D iOS 6 Maps. Check the tutorial to install it here, if you interested.