Free Wi-Fi catches on with NYC's subway riders

One month in to wireless service being provided in six New York City subway stations, commuters are happy to have chances to connect when their trains head underground and pull into one of the stations with Wi-Fi. The new service is part of a $200 million plan to connect the subway to the outside world.

Transit Wireless, the company in charge of building and designing the network, is working with many carriers to provide cellphone and data connectivity services to all 277 underground stations in New York by 2017. The service, sponsored by Google Offers, is available on train platforms at five stations, all in the Chelsea neighborhood. Customers of T-Mobile and AT&T can also use cellphones in the six stations. Negotiations continue for telecom giants like Verizon and Sprint to join.