title: Avoid flicker when moving annotations in a MKMapView on iPhone
body: <p>As far as I know, there isn't a way to move an annotation without removing &amp; re-adding it to the MapView (Maybe I'm wrong).</p>
  
  <p>Is there a way to prevent the MapView from being re-drawn between removing &amp; re-adding the annotation? Right now the re-draw after removing the annotation causes a frame without the annotation, so it appears to flicker.</p>
  
  <p>I need a solution that works in iOS 3.1 updates.</p>
  
  <p>Thanks</p>