The biggest reason cited for prohibition of cell phones and/or iPods in school is cheating. As technology continues to evolve, so are the creative ways students devise to beat the system (check out my personal favorite, #8)
It's no secret technology is everywhere, and as a result, so is information. If you have a cell phone, you can get an answer to anything
As a result, education today is less about memorizing facts and more about knowing where to find information and how to apply it. Creative assignments that assess for understanding and the application of information eliminate the need to worry about the misuse of technology. As a matter of fact, a creatively designed test can actually embrace the use of technology and collaboration. Isn't that preparing students for the future anyway?