Approaching 3.3 billion—half the world’s population.
“No technology has ever spread faster around the globe: the mobile phone took less than two decades to reach this degree of penetration.”
Actually I had one at work, about the size of a WW2 Walky-Talky, in 1983—which is almost three decades back.
I have a cell, of course. But I usually keep it in the car for breakdowns or other contacts of sudden need. I do not carry it about with me all the time.
THE TEXAS SCRIBBLER 