In the Innovate article “What Can You Learn From a Cell Phone? Almost Anything” (June/July 2005), Marc Prensky wonders why North Americans, and especially educators, aren’t in sync with the rest of the world’s commitment to cell (mobile) phones. Prensky cites the statistic that “cell phone penetration is greater than 100%” in some nations. He reviews a long list of cell phone features that can be used in education, and points out that students have already found that one feature that allows them to retrieve information on demand during exams. Do you ever give an open-book exam? Are you ready for the day when you might say, “Yes, you may use your phones for this exam”?