Newsweek had an interesting story about the U.S. Military using Apple’s iPhone OS for doing things like defusing bombs through iPhone-controlled robots and tracking video from drone airplanes.
Over the past month I’ve deployed three iPod touches to teachers in the county–as an experiment–to see what they could do with the device. We didn’t have the budget the Army had for deploying customized applications, but with all the thousands that are available, you’re bound to find something that you can use.