T-Mobile has maintained its lead for 5G speeds and availability in the USA, with its main rivals only slightly narrowing the gap, according to the latest results from two mobile analytics firms. Boston-based Opensignal and London’s Ookla both confirm TMO’s consistent lead, which has been established over the past two years. But panning out globally, recent survey results indicate the rapidly rising impact of 5G in some emerging economies where deployments are starting to play a significant role in reducing broadband deficits domestically and also with other nations. Against these backdrops is the need for caution interpreting these results and equating them to real user experiences. There is a confusing array of metrics with individual operators, and nations, often ranking…