code: function(source, dest) {
          var point = OpenLayers.Projection.transform(
              {'x': this.lon, 'y': this.lat}, source, dest);
          this.lon = point.x;
          this.lat = point.y;
          return this;
      }
docs: APIMethod: transform
  Transform the LonLat object from source to dest. This transformation is
  *in place*: if you want a *new* lonlat, use .clone() first.
  
  Parameters:
  source - {<OpenLayers.Projection>} Source projection.
  dest   - {<OpenLayers.Projection>} Destination projection.
  
  Returns:
  {<OpenLayers.LonLat>} Itself, for use in chaining operations.