Jeff Cole, director of USC's Center for the Digital Future:
In 1975, the average American spent 16 hours a week in front of a screen. Last year, that figure hit 34 hours and should grow to 50 hours in a few years. Much of that growth will come from mobile video, as consumers watch more TV and more video on mobile screens in general.
Emphasis added on the part of about "mobile video," which is another reason, you should be at "Smart Phones for Smart Journalists" in Nashville on April 9.