title: How to add tooltip in map windows phone 8?
body: <p>My windows 8 phone app programatically add an image (as a pin) to a specific coordinataion in map using mapoverlay. And now i would like to add a tooltip to the image (pin) after tapping on it. Does anyone know how to fix this?</p>
  
  <pre><code>pinIMG = new Image();
                  pinIMG.Source = new System.Windows.Media.Imaging.BitmapImage(new Uri("/Assets/pin.png", UriKind.Relative));
  
  MapOverlay myLocationOverlay = new MapOverlay();
                  myLocationOverlay.Content = pinIMG;
                  myLocationOverlay.PositionOrigin = new Point(0.5, 0.5);
                  myLocationOverlay.GeoCoordinate = new GeoCoordinate(57.724611, 12.938945);
  
  MapLayer myLocationLayer = new MapLayer();
  myLocationLayer.Add(myLocationOverlay);
  MyMap.Layers.Add(myLocationLayer);
  </code></pre>