All three major US mobile operators have now reported solid second quarter financial results, but T-Mobile’s were the most impressive overall, continuing a sustained period of growth in subscribers as well as 5G performance benchmarks. TMO posted revenues up 12.9% year-on-year for the quarter, at $19.95bn, while net income shot up almost ninefold from $110m to $978m. The latter was attributed to a combination of service revenue growth on a slower moving cost base and what the company called synergy realization. This can only have been referring to the operator’s $26.5bn takeover of Sprint approved in February 2020, but no further details were given. It may refer to consolidation of infrastructure to reduce the cost of mobile service delivery, as…