WASHINGTON -- The debt ceiling battle could produce an unlikely winner: smartphone users.Senate Majority Leader Harry Reid's current plan would direct the Federal Communications Commission to auction off highly valuable radio spectrum to wireless carriers desperate for more airwaves. Companies such as AT&T and T-Mobile USA say they need more capacity to keep up as their customers increasingly use iPhones, tablets and other portable devices to handle mobile applications, online video and other bandwidth-hungry services.Read More... More on Debt Ceiling