A study shows many customers pay for much more time than they useDavid LazarusMarch 8, 2009 If you're like most cellphone users, you probably think you're paying less than 10 cents per minute for calls. Think again. When you do the math, you find the average cellphone customer actually pays more than $3 per minute, according to a report being issued this week by the Utility Consumers' Action Network, a San Diego consumer advocacy group. Vide David Lazarus on things...I got a sneak peek at the re