Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5H11 Safari/525.20) So I fly fairly often. I have noticed something that happens every time I'm IN the airport. When I use GPS services and I'm in the Detroit airport, the GPS shows me as being in Harrisburg, PA. When I enter the plane, it will properly show me on the runway in Detroit. Must be some tower pipeline connections between DWI and MDT? E.g. The GPS falls back to triangulation??