April 20, 2011 4:32 pm More Cell Phone Users Ditching Landlines About 27 percent of U.S. households used cell phones exclusively in the first half of 2010, according to the Centers for Disease Control and Prevention. Local 0:52 El Minuto 5/1 Spanish Edition 0:59 El Minuto 5/1 English Edition 1:36 Arizona Senate repeals 1864 abortion ban 3:09 Desarticulan banda criminal dominicana 1:40 Democrats say Big Oil misled public for decades about climate change