Cant wait for a clear night
The tracking can be a bit glitchy if you are near buildings but what a great app. It uses both the compass and the GPS to update the phone position to track where the phone is in space both north south east west but also the angle of attack as you raise your arm higher overhead... Its really very good. You can turn on and off labels, horizons, objects etc very easily. The easiest way to learn the constellations. Nice app.
Tim down the street about
Pocket Universe - Astronomy