Here is Google Map Navigation for Android Mobiles:
http://www.youtube.com/watch?v=lwggXqMZZ8w
Can we achieve this functionality for iphone? Is there any map api available for this which provides directions and details on GPS bases as well text (source to destination) bases?
If Yes, please provide some links regarding those.
It is against google’s terms of service (relating to MapKit) to do turn by turn navigation, however you can work around it using the google maps web api and create custom code.