There seems to be no end to the ways a smartphone can simplify tasks, and no end to the everyday items it can make obsolete.
Data usage is fueling the trend, and evolving technologies are expected to maintain this growth.
Students in an advanced U.S. history class at John Hardin High School, a sample of the young market pushing many national mobile trends, said their phones are not distractions for idle chatter. Rather, these high school juniors said, phones have become essential tools. They are as needed as computers, televisions, books, even pencils.