Track your physical location, in 3 dimensions.

I can't remember how many times I've red-eyed, and wondered what the town was I was flying over. I'd like it even more if I knew the path (and what side of a big city we were going to be on) so I could shift seats to watch a city go by. I've seen Chicago from cruise altitiude on a clear night during a red-eye, and it was amazing.

Steve B.