Google Map Navigation and Direction in iPhone app

Question

I wan to use google map navigation and direction functionality in my iPhone App. Is there any sample app or documents which should I refer? Is this paid functionality?

Thanks,

Answer 1

If you want to use Google Maps the google provides a really good API.

Google Code

For the direction it depends what you need. For the direction you head up to you can use the compass. If you want to track the direction of your movement you can do that with GPS.

If you don't want to use google maps you can use the Route Me example (Open source iPhone-native slippy map), which already includes functions like tracking and many more.