If you go to the Crackberry or MobiHand app store, and start typing "diab" in the search box, there are 4 applications. Look at each of them and see if they look like they will be of value. There aren't a lot of reviews, so you could also click on the developer's name and see what else they have done.
Thank you BlackBerryBiker. I never realized you could get more results by clicking Search. So in case anyone's interested, by doing it that way, there are 8 results. If you type "diab" and look at the apps that pop up, there are only 4 because only 4 contain "diab" in their name. Good to know.