I have the BabyMed Fertility and Pregnancy Calculator. I mhave also iFlix.
iFlix is almost more fun than actually visiting Netflix.com. This application feels natural, like it was made by Steve himself. I just wish there was a way to view all of those watch it now movies on my iPhone. I also wish you could rate your movies on iFlix. Maybe we will see more features when iPhone 2.0 firmware is released.