When Kevin Lopez opens the door to his Greenbelt, Md., apartment to greet a visitor he's never before met, he initially conceals his right hand.
"I'm self-conscious, definitely, about my right hand," he says. But eventually Lopez relaxes.
Looking back on the clunky desktops of home offices, smartphones have expanded the definition of what it means to "go online." With all of the apps and mobile capabilities available to us now, it's no surprise that smartphone ownership has grown.