A Seattle wireless hacker rides a commuter train from Tacoma every day with a battery-powered WiFi hotspot in his backpack that's linked up to the Internet with a
14.4 144k wireless modem. Catch his train and get free WiFi on your commute.
The open wireless node can be found in the first car of the last morning train and in Car 403 on the 5:10pm return trip. Use SSID "FreeInternetAccess" or "seattlewireless" to connect - You may have to assign yourself an IP in the range 192.168.0.0/24 and use the Default Gateway 192.168.0.1 as the DHCP is sometimes flakeyLink (via Make)