title: How to use custom icons with mapKit framework?
body: <p>I am using the MapKit framework to load google maps on my application and I place on map 4 "simulated" places like this:</p>
  
  <pre><code>- (void)viewDidLoad {
  
  [super viewDidLoad];
  
  mapView.delegate = self;
  
  mapView.showsUserLocation = YES;
  
  MKUserLocation *userLocation = mapView.userLocation;
  
  MKCoordinateRegion region =
  MKCoordinateRegionMakeWithDistance (userLocation.location.coordinate,500,500);
  [mapView setRegion:region animated:NO];
  
  //Simulated annotations on the map
  CLLocationCoordinate2D poi1Coord , poi2Coord , poi3Coord , poi4Coord;
  //poi1 coordinates
  poi1Coord.latitude = 37.78754;
  poi1Coord.longitude = -122.40718;
  //poi2 coordinates
  poi2Coord.latitude = 37.78615;
  poi2Coord.longitude = -122.41040;
  //poi3 coordinates
  poi3Coord.latitude = 37.78472;
  poi3Coord.longitude = -122.40516;
  //poi4 coordinates
  poi4Coord.latitude = 37.78866;
  poi4Coord.longitude = -122.40623;
  
  MKPointAnnotation *poi1 = [[MKPointAnnotation alloc] init];
  MKPointAnnotation *poi2 = [[MKPointAnnotation alloc] init];
  MKPointAnnotation *poi3 = [[MKPointAnnotation alloc] init]; 
  MKPointAnnotation *poi4 = [[MKPointAnnotation alloc] init];
  
  
  poi1.coordinate = poi1Coord;
  poi2.coordinate = poi2Coord;
  poi3.coordinate = poi3Coord;
  poi4.coordinate = poi4Coord;
  
  poi1.title = @"McDonald's";
  poi1.subtitle = @"Best burgers in town";
  poi2.title = @"Apple store";
  poi2.subtitle = @"Iphone on sales..";
  poi3.title = @"Microsoft";
  poi3.subtitle = @"Microsoft's headquarters";
  poi4.title = @"Post office";
  poi4.subtitle = @"You got mail!";
  
  [mapView addAnnotation:poi1];
  [mapView addAnnotation:poi2];
  [mapView addAnnotation:poi3];
  [mapView addAnnotation:poi4];    
  </code></pre>
  
  <p>}</p>
  
  <p>The code is fairly simple. What i want to do is instead of using the typical red pin on my google map , use my own images to show different places. Is there a simple/straightforward way to do that, cause I got much confused from the samples I already found.</p>