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) -- Although Verizon ( VZ) was in the forefront when it launched its 4G LTE network more than a year ago, customer adoption of the new high-speed technology has been slow. Speaking at an investor conference Monday, Verizon Wireless' CFO Fran Shammo said that only about 5% of its total customer base use an LTE smartphone. Verizon is currently well ahead of AT&T ( T) and Sprint ( S) in terms of LTE deployment with coverage in 196 markets across the U.S. It has also been actively promoting its LTE technology through the launch of cheaper smartphones and plans. We believe LTE adoption rates will pick up from here.