How much faster is Verizon’s 4G mobile broadband network than, say, T-Mobile’s 3G network? Taking the guesswork out of such discussions, the Federal Communications Commission says it plans to start reporting on mobile broadband speeds nationwide. “The FCC will begin a review process of the mobile networks with a meeting Sept. 21, with the goal of providing customers with a report card of sorts for those networks,” VentureBeat reports.