
As we noted earlier this week as part of our roundup of device compatibility for various iOS 6 features, several of Apple's new mapping features including Flyover and turn-by-turn navigation are not officially supported on the iPhone 4, much less the iPhone 3GS.

But as reported by SlashGear, a member of Russian site iguides has posted videos [Google translation] showing the 3D maps and Flyover working on a jailbroken iPhone 4. The poster has also included instructions for adding the functionality, although the procedure is not yet a completely straightforward one.
Regardless of the reasons for Apple's limitations on mapping features, hackers and developers will undoubtedly continue working on ways to circumvent those restrictions, and we will likely see other features like turn-by-turn navigation also come to older devices for those willing to tweak their devices to enable them.
Article Link: iOS 6 Maps with 'Flyover' 3D Hacked to Run on iPhone 4