[mapView removeAnnotations:mapView.annotations]

mapView.showUserLocation = YES

- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id<MKAnnotation>)annotation

MKPinAnnotationView* annView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"currentloc"];

if (!annView) {
   MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
  annView.pinColor = MKPinAnnotationColorRed;
  annView.animatesDrop=TRUE;
  annView.canShowCallout = YES;
  annView.calloutOffset = CGPointMake(-5, 5);
  if ([annotation isKindOfClass:[DraggableAnnotationAM class]] ) annView.draggable =YES;
  return annView;

}
else {
  if ([annotation isKindOfClass:[DraggableAnnotationAM class]] ) annView.draggable =     YES;
  annView.annotation = annotation;
  return annView;
 }

MKUserLocationView

NSMutableArray *annotation = [[NSMutableArray alloc] init];
                for (id <MKAnnotation> annot_ in [mapView annotations])
                {
                    if ( [annot_ isKindOfClass:[ MKUserLocation class]] ) {
                    }
                    else {
                        [annotation addObject:annot_];


                    }
                    }

    [mapView removeAnnotations:annotation];

    [annotation release];

    annotation = nil;