Geolocation. Best practices

Hi at all,

i wrote this "GeolocationService" class, i would like to have your opinion.

Thanks!

F.

package services
{
    import flash.events.Event;
    import flash.events.GeolocationEvent;
    import flash.events.IEventDispatcher;
    import flash.events.StatusEvent;
    import flash.sensors.Geolocation;

    public class GeoService
    {
        public var dispatcher:IEventDispatcher;
        public var geolocation:Geolocation;
        public var latitude:Number;
        public var longitude:Number;
        public var gpsSupported:Boolean;
        public var gpsEnabled:Boolean;
        public static const ENABLE_GPS:String = "enableGPS";
        public static const DISABLE_GPS:String = "disableGPS";
       
        public function GeoService()
        {
            if(Geolocation.isSupported) {
                gpsSupported = true;
               
                geolocation = new Geolocation();
                trace("Geolocation created");
               
                geolocation.setRequestedUpdateInterval(10000);
               
                if(geolocation.muted) {
                    // inform the user to turn on the location sensor
                } else {
                    activeGPS();
                }

                geolocation.addEventListener(StatusEvent.STATUS, onStatusChange);
           
            } else {
                gpsSupported = false;
            }
        }
       
        protected function onStatusChange(event:StatusEvent):void
        {
            if(geolocation.muted) {
               // inform the user to turn on the location sensor
                deactiveGPS();
            } else {
                activeGPS();
            }           
        }
       
        protected function onUpdate(event:GeolocationEvent):void
        {
            latitude = event.latitude;
            longitude = event.longitude;               
        }       
       
        public function activeGPS():void
        {
            if(gpsSupported && geolocation && !geolocation.hasEventListener(GeolocationEvent.UPDATE))
            {
                geolocation.addEventListener(GeolocationEvent.UPDATE, onUpdate);   
                gpsEnabled = true;
            }           
        }
       
        public function deactiveGPS():void
        {
            if(gpsSupported && geolocation && geolocation.hasEventListener(GeolocationEvent.UPDATE))
            {
                geolocation.removeEventListener(GeolocationEvent.UPDATE, onUpdate);   
                gpsEnabled = false;
            }           
        }   
    }
}