It's a question heard at countless bus stops: "Have you seen the number 48 go by?"
Cold, impatient bus riders stamp their feet, check their watches, and wonder if that bus is ever going to come. But in Seattle, a cell phone and the ingenuity of two University of Washington students has come to the rescue.
Brian Ferris, a UW doctoral student in computer science, spent one too many rainy nights waiting for the bus before deciding to take action.