6 Billion People Have Cell Phones

I read in the newspaper today that over 6 Billon people have cell phones in a world of about 7 billion people, that is truly amazing to think thats how many people have cell phones.  According to the article 6 billion people had cell phone plans at the end of last year, which again is truly amazing to think thats how many people have cell phones.  They say that in 2010 texting brought cell phone service companies in about $1.5 trillion dollars in revenue according to the "Measuring the Information Society 2012" report.