Developers grab the WP8.1 SDK and develop top notch apps for all of us to enjoy ! i'm sure the new SDK will make your work much more easier than before, I suppose.....
On second thoughts without having WP8.1 how are the devs going to test their apps?
Geolocator geolocator = new Geolocator();
Geoposition position = await geolocator.GetGeopositionAsync().AsTask();
position.Coordinate.(Longitude/Latitude)
Geolocator geolocator = new Geolocator();
Geoposition position = await geolocator.GetGeopositionAsync().AsTask();
position.Coordinate.Point.Position.(Longitude/Latitude)