T-Mobile USA Inc., which announced plans to merge with MetroPCS Communications Inc., will still struggle to compete against the largest U.S. carriers without network upgrades and popular devices such as the iPhone. T-Mobile’s parent, Deutsche Telekom AG, agreed to combine the two U.S. businesses in a stock and debt restructuring that pays $1.5 billion in cash to MetroPCS shareholders. Bonn-based Deutsche Telekom will hold 74 percent of the merged company, which will trade on the New York Stock Exchange. Read the full story at Bloomberg.