All the classes I took at MIT let students bring a "cheat sheet" to exams. Additionally, many exams were completely open-book. I know that this is neither here nor there, but I felt compelled to comment on the notion that if you haven't memorized something, that you haven't learned it. This idea is all too prevalent.
Absolutely. If the exam is trying to assess how you would do in an environment where you are free to look things up (like the real world most of the time), then that makes good sense. The point generalises to this:
Exams are an attempt to measure something about you. Cheating is an attempt to make the result of the exam better than the reality of the thing the exam is trying to measure. Morally this puts it in the same class as lying and other deception.
So whether carrying information into the exam is cheating or not, depends on the exam. If it's trying to measure what you can remember, it's cheating. Otherwise, it may not be.
If this technology helps you to actually learn, then you aren't just increasing the result of the exam, you're actually increasing the thing the exam is trying to measure.
