For the last few months my partner and I have been working on an application for the iPhone. We finished it last week and now its available in the App Store!
The application is for pediatricians or any health professional who works with kids. Its called the Kidometer and it is a database of age-based normals. In pediatrics everything changes with age, from the normal range for alkaline phosphatase to the proper size of a laryngoscope blade to the appropriate advice to a parent to keep the tot safe. All of that information is available to the user of Kidometer instantly.