These days, you can do virtually anything on your mobile device. If you’ve ever been standing in a crowd of people, heard one of the generic iPhone ringers go off and watched about 14 different people pull out their cell phone, then you know what I’m talking about. Nielsen estimates that there are over 160 million smartphone users in the US. 160+.million.people. All surfing the web, and all probably playing Angry Birds. And that number is only going to get bigger.