The American "cell phone behaviour"...
...was analysed by "Pew Internet" : they released a study which showed that if 65% of the American adults regularly use text messaging in September 2009, one year later 72% of them do. The study also pointed out 90% of 18 to 29-year old sleep with their cell phone 'on' whereas only 34% of 65-year old do it. Today the American teenagers text 50 messages a day on average : it's 5 times more than the average 10 text messages sent/received per day by adults !
Other interesting pieces of information [just click ⇓] are illustrated below :
"Cell phones and American adults - They make just as many calls, but text less often than teens"
Click on the purple folder & read the full report below :