T-Mobile revealed today in its Q3 2013 results that it sold a total of 5.6 million smartphones in the quarter, including 3.6 million under its own brand. As noted by AllThingsD, T-Mobile Chief Marketing Officer Mike Sievert indicated that the iPhone represented 15% of that latter number, putting iPhone sales for the quarter at just 540,000. T-Mobile noted during its earnings conference call that it felt the iPhone sales percentage could have been better if it had had better supplies of the iPhone 5s at its launch in the waning days of the quarter. Many customers undoubtedly held off from purchasing iPhones for much o
