you can by AGSMapViewTouchDelegate's didClickAtPoint method do that as flow: -(void)mapView:(AGSMapView *) mapView didClickAtPoint:(CGPoint) screen mapPoint:(AGSPoint *)mappoint graphics:(NSDictionary *) graphics
Thank you. Using that delegate method I can retrieve the value as map units using the mapPoint:(AGSPoint *)mappoint parameter. But how do I convert it to actual latitude and longitude values?