From ASCD SmartBrief:

Wily cheaters exploit popular gadgets
As cheaper cell phones, cameras and other gadgets become more widespread with students, some fear that "technocheating" could grow. Districts are taking steps to thwart clever students, who ingeniously replace the ingredient labels of candy wrappers with tiny scanned crib sheets or load low-cost USB flash drives with hundreds of megabytes of notes. The Kansas City Star (Mo.) (free registration)