To be honest, I've never used a pocket mod for note taking either. For a large sports event, however, I've used them to give everyone a copy of the rules and the release form, rather than printing six pages for everyone. I've got a second game using the format in the works as well. Its called "Rocks Sar Spies" and the plays off the fact that a pocket mod is about the size of a cassette tape.
There are a few other uses I could think of, but lets not give too many hints and spoil anything.