As we reported earlier this week, some iOS 6 features will not be compatible with all iDevices. Among these features are new turn-by-turn navigation and Flyover that are not supported on the iPhone 4 and older devices.
But according to videos posted by Russian site iGuides, Flyover and 3D maps can properly work on a jailbroken iPhone 4. After digging in the firmware, an iOS developer Anton Titkov has managed to get these feature working on the iPhone 4 and has even posted instructions for enabling these functions.