Sitting in a train with my laptop running Kismet and enhanced with a gpskit I logged several wireless networks and even managed to get a location fix for part of them on the second day. Kismet log view from the first trip and the return trip. Tip: GPS reception in a NS train is flaky, try the upper level and stick the antenna to the upper part of the window. Do note the logged speed from the GPS: the train went up to 144 km/h.