Jeff Johnson
According to the latest data, the U.S. "adoption rate" for mobile phones stands at 85 percent. That's higher than the percentage of Americans who have DVD players (84 percent), home PCs (80 percent), digital cameras (69 percent) or MP3 players (40 percent), according to the Nielsen Co. "The concept that within my lifetime we'd have the kind of penetration we have today is unimaginable," says Martin Cooper, 79, the former Motorola researcher who invented the portable cell phone in 1973.
newsweek.com technology trend adoption_rate market penetration
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