- (MKAnnotationView *) mapView

MKMapView *)mapView viewForAnnotation

id <MKAnnotation>) annotation{
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];//CONSTANTS CHANGE IT
[annView setPinColor:MKPinAnnotationColorGreen];
[annView setAnimatesDrop:NO];
[annView setCanShowCallout:YES];
[annView setCalloutOffset:CGPointMake(-5, 5)];
/*****
annView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
*****/
return [annView autorelease];
}
so if you don't want this blue button kind of thing then comment
/*****
annView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
*****/
Then it will work fine.
Thanks