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.

— Beet.TV

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.