It's no secret that all of America's big four wireless service providers have before they can deliver meaningful speed upgrades for consumers on a truly nationwide scale. T-Mobile, for instance, is the industry's clear leader , but in terms of the actual user experience, Magenta's "next-gen" network can't even compete with the .Meanwhile, is light-years ahead of the competition... , which generally happens in crowded downtown areas of major cities as long as there are no trees, walls, or other obstacles blocking your phone from making a very significant speed jump. As for ...