http://www.apple.com/ios/ios6/maps/
(scroll to the very very bottom of the page)
In case anyone was wondering...
...don't know why there's no SIRI on the iPad 2 - it uses the same exact hardware the 4S uses...?
(scroll to the very very bottom of the page)
1. Some features may not be available in all countries or all areas. Flyover and turn-by-turn navigation will be available only on iPhone 4S and iPad 2 or later. Cellular data charges may apply.
2. Siri will be available only on iPhone 4S and iPad (3rd generation) and requires Internet access. Siri may not be available in all languages or all areas, and features may vary by area. Cellular data charges may apply.
In case anyone was wondering...
...don't know why there's no SIRI on the iPad 2 - it uses the same exact hardware the 4S uses...?