techno-zombie
A person or persons who walk through public areas (shopping malls, sidewalks, etc) text messaging on their cellphones, not paying attention to their surroundings.
Person 1: "See that guy, he nearly ran into that crowd of people cause he wasn't watching where he was going."
Person 2: "He was text messaging on his cell. He's a techno-zombie.
Person 2: "He was text messaging on his cell. He's a techno-zombie.