It's like an unintended microcosm demonstrating how these types of neat mobile apps get little traction outside the Silicon Valley echo chamber.

This appears to be a bug. It was working last night when I tried it, but now I just get the same Mountain View plane over and over again. Also the planes I made have stopped accumulating stamps.

When it was working I was surprised how few of the stamps were from the bay area.

Same here. ~15 planes caught, the only time I caught one that had a stamp other than mountain view, it had one of my own stamps on it :(

yeah me too.. 8 planes, all from Mountain View, CA

+1 =/