title: iphone calendar sample
body: <p>I would like to have an iphone application...... I want to be able to have some sort of calendar where you can select any day and fill information (and save it under that date) I understand I need databases but I'm not sure how can I do this? Plan is to use the date as a primary key but I'm kind of confused in how getting this to work? any pointers? thank you</p>