U.S Cellular is rolling out 4G LTE service in second half of 2012 with coverage for up to 3,600 cities and town. In conjunction with the network launch, the carrier is also launching Samsung 4G LTE Mobile Hotspot, Samsung Galaxy Tab 10.1 and Samsung Galaxy S Aviator smartphone. It also said that by the end of 2012, 54% of U.S Cellular’s customers will have LTE coverage.