Since posting about the PocketMod, I've had a lot of responses and great additional tips. One person uses theirs as a daily budget tracker, and a few of my friends flocked to the site immediately.
A reader let me know about this page, where there's a lot of extra little add on pages that people on the net have made. You will need to download the flash version of PocketMod to your computer, but after that you can add in all sorts of fun! There's pages like a random maze generator, a Google calendar sync and even movie listings.