Smartphones Represent 40% US Mobile Phones

Smartphones now representing 40 percent of all mobile phones in the U.S., according Nielsen, reports Giga OM

"Forty percent of mobile consumers over 18 in the U.S. now have smartphones, according to July 2011 data from Nielsen. Android is the most popular operating system, with 40 percent of mobile consumers reporting they have a smartphone with an Android OS. Apple’s iOS is in second place, with 28 percent."

Read full Nielsen report