Verizon's mobile network has once again been named the best in the US by testing firm RootMetrics, and T-Mobile USA finished last among the four major wireless carriers. While Verizon Wireless bragged about its victory, T-Mobile claimed that the results are meaningless and that its network is the fastest in the US. The RootMetrics reports have been an ongoing problem for T-Mobile, which has repeatedly claimed that the results shouldn't be trusted.