Travelers on London's Underground need no longer fear being out of touch. The subway network began launching WiFi on Thursday, rolling out the service to a handful of stations this week as part of a build-up before the Olympics. The games are set for July 27 to Aug. 12.
By the end of the year, about 120 Tube stations will be connected, including some which are very deep underground.
The service will be free for the summer, but users will have to register. Users can get online throughout connected London Underground stations, such as on platforms and in ticket halls. The WiFi will work on trains but not in tunnels.