April 20, 2011 2:32 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. US & World Videos 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments