Teenagers and Their Smartphones in 2011
Link :: Jonathan McKee
Smartphone penetration in 2011. 40% of 13-17 year olds, and 53% of 18-24 year olds have smartphones.
Link :: Jonathan McKee
Smartphone penetration in 2011. 40% of 13-17 year olds, and 53% of 18-24 year olds have smartphones.
