The iPhone has found a new use at Amtrak, where train conductors have begun using Apple's smartphone to scan passengers' tickets electronically. Amtrak, which is owned by the U.S. government and has more than 20,000 employees, began issuing iPhones to train conductors last November, according to The New York Times. By late this summer, the company plans to have a total of 1,700 conductors using iP