I was over at Bob's place last night using his telescope (while he worked on his take-home final for class). At one point he wanted to go out for a Mountain Dew and the sky had gotten temporarily cloudy, so we grabbed his dashboard GPS, laptop with netStumbler on it, and drove a circuitous route through Los Alamos looking for wireless hotspots. We found over 100 access points in about 10 minutes of driving. I think about half of them were totally unsecured.