Announcing its fourth quarter 2011 financial results, newly-added iPhone carrier Sprint revealed that the launch of the handset boosted revenue and subscriber numbers, but also led to a large net loss for the quarter. According to the company, it sold 1.8 million iPhones in the quarter, 40 percent of which were purchased by new customers. That number that helped the company add 1.6 million net subscribers during the quarter, it’s best quarterly…
