Some facts about shingles include that: 1  Shingles is rare in children under ten years of age. 2  Younger children who do develop shingles tend to have milder symptoms than adults with shingles. 3  People have a 10 to 15 percent chance of developing shingles at some point in their life if they once had chicken pox.
There are approximately 310 million people in the United States. Of these people, approximately 250 million are over the age of 14. According to Comscore, about 235 million of these Americans use mobile devices. It seems likely that almost all of these folks will eventually have smartphones.
According to Canalys there were approximately 41 million GPS units sold in 2008, and in 2009 the number of GPS enabled cell phones in use had exceeded 27 million. 1  Without even thinking, tens of millions of people access directions and look-up local businesses from these hand-held devices every day.