Next year, Salt Lake City residents will pay for public transit by passing their smartphones over an electronic sensor, if a deal between the Utah Transit Authority and Isis, a mobile payment joint venture between AT&T (T
), T-Mobile, and Verizon (VZ
), comes off as planned. The UTA has been testing the technology in its buses, trains, and light rail since 2009. New York City and Chicago have piloted NFC on mass transit, but the UTA-Isis partnership is the first full-scale launch of its kind.