Although I haven't done this yet, more and more people are dropping their home land lines in favor of using their cell phone and number as their main home land line phone. Americans who rely on cell phones as their primary line of communications tend to be younger, less affluent, single and more liberal. That's according to The Cell Phone Challenge to Survey Research, a report released by The Pew Research Center and based on a survey conducted in association with the Pew Internet & American Life Project, the Associated Press and AOL.