wp8LocationServices

        /// <summary>
        /// Get actual Position from GPS/Wifi/gsm
        /// </summary>
        /// <returns></returns>
        private async Task<Geoposition> getLocation(int maxAgeInMinutes = 5, int timeOutinSeconds = 10)
        {
            Geolocator geolocator = new Geolocator();

            Geoposition geoposition = null;

            if (geolocator.LocationStatus != PositionStatus.Disabled) // Check if we can access the LocationService
            {
                geoposition = await geolocator.GetGeopositionAsync(
                maximumAge: TimeSpan.FromMinutes(maxAgeInMinutes),
                timeout: TimeSpan.FromSeconds(timeOutinSeconds)
                );
            }

            return geoposition;
        }

        /// <summary>
        /// Get Coordinates from adress
        /// </summary>
        /// <param name="searchTerm"></param>
        private async void getLocationCoordsfromAdress(string searchTerm)
        {
            GeocodeQuery a = new GeocodeQuery();

            Geoposition geoposition = await getLocation();

            if (geoposition != null)
                a.GeoCoordinate = new GeoCoordinate(geoposition.Coordinate.Latitude, geoposition.Coordinate.Longitude);
            else
                a.GeoCoordinate = new GeoCoordinate();
            a.SearchTerm = searchTerm; // mock search, replace with search value

            a.QueryCompleted += (s, e) =>
            {
                if (e.Error == null && e.Result.Count > 0)
                {
                    // DO SOMETHING SERIOUS
                }
            };

            a.QueryAsync();
        }

        /// <summary>
        /// Get Location name by lat and long
        /// </summary>
        private async void getLocationName()
        {
            Geoposition geoposition = await getLocation(1);

            List<MapLocation> locations;
            ReverseGeocodeQuery query = new ReverseGeocodeQuery();
            query.GeoCoordinate = new GeoCoordinate(geoposition.Coordinate.Latitude, geoposition.Coordinate.Longitude);
            query.QueryCompleted += (s, e) =>
            {
                if (e.Error == null && e.Result.Count > 0)
                {
                    locations = e.Result as List<MapLocation>;

                    Model.LocationName = locations[0].Information.Address.Street;
                    // Do whatever you want with returned locations.
                    // e.g. MapAddress address = locations[0].Information.Address;
                }
            };
            query.QueryAsync();
        }