Another freelance iPhone application I recently completed is Pointer Cards. Pointer Cards is a handy language translator for travelers. It includes translations of common words to 11 languages. The client needed a simple way for content management so I created a series of perl scripts that create a folder database. This is all done in Objective-C and some tricks were needed to make the card browser work. What happens is it takes time to load all the preview icons and that starves the main application thread. So I spawn a thread for each UIImage that gets loaded. I will post some source code soon.
Buy Pointer cards:
Pointer Cards on iTunes app store