“The 700 MHz spectrum, being vacated by TV stations as they go digital, is coveted for its ability to penetrate walls and other obstacles. Under FCC chairman Kevin Martin’s proposal, to be circulated in the agency as early as Tuesday, mobile services in these airwaves would have to allow consumer choice. ‘Whoever wins this spectrum has to provide … truly open broadband network — one that will open the door to a lot of innovative services for consumers,’ Martin said in an interview Monday.”