When it comes to mobile media 35 percent of tweens own a mobile phone according to a study from Nielsen, "Kids on the Go: Mobile Usage by U.S. Teens and Tweens."
Teens Lead On Tech, Tweens Follow
Teenagers 17 and older are leaders when it comes to adopting new technology and are twice as likely to be early users of some key new technologies as younger teens according to a JupiterResearch report "Teens and New Technology: Understanding the Adoption Cycle".