Thousands of low-income Coloradans reliant on public assistance could get a free cellphone under a plan before the state Public Utilities Commission. If approved, the plan by TracFone Wireless in Miami would make Colorado the 17th state it has settled into with free cell service for the indigent, a form of wireless welfare that proponents say taps into one of the last untapped markets for the telecom technology. "Our hope is to have it up and running by September," said Jose Fuentes, TracFone's director of government relations. "Historically, it's a very underutilized service, and we'd like that to change."