London Underground and BT are launching a six-month trial of WiFi service at London's Charing Cross tube station. The service, which will be available from 1st November, uses the BT Openzone service. It'll be chargeable, although around 5 million BT broadband customers and BT Openzone customers are eligible to use the service without paying any extra. Live Transport for London service updates will be available to all WiFi users.