I just got off of a 25 hour train ride from West Palm Beach florida to Washington, DC. I know that some trains on the East coast have WiFi in their cars (if Lufthansa and SAS can do it over the Atlantic, then why can't Amtrak do it on soil?). Alas, no signal was to be found. So, I fired up NetStumbler and ran it for the entire length of the trip.

I found 1288 hot spots along the way - most locked, and none of them broad enough to connect to at 70+ miles per hour!

If you'd like to check out the big list of AP names, speeds, etc. then download my NS1 file. You'll need NetStumbler to read it.