The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.NEW YORK ( Trefis) -- Verizon ( VZ) may have been the first to launch its 4G LTE network more than a year ago, but customers haven't taken to the new high-speed technology in meaningful numbers yet. Earlier, the company's CFO Fran Shammo had said that only about 5% of its total subscriber base use an LTE smartphone right now. In a bid to increase LTE adoption, Verizon is now planning to only introduce phones that support the high-speed network this year. Moreover, it has also decided to increase its target year-end LTE coverage to 260 million Americans from the earlier 250 million target. Verizon is currently well ahead of AT&T ( T) and Sprint ( S) in terms of LTE deployment with coverage in almost 200 markets across the U.S and plans to add another 200 by the year's end.