We all know they're everywhere. We see them at the grocery store; in drivers' hands, at restaurants and in movie theaters. If fact, some people wear them on their wrists!
They are for communication, certainly. And for playing games. But they're also, increasingly, the remote controls that Americans use to manage their homes, conduct business, shop, check on their children, and assure their own safety and security.
There are, according to reliable statistics, more than 207 million
smartphone users in the United States in 2016, and more than 2 billion worldwide.