To delete a date just swipe it.

We thought about creating a separate system to allow children's birthdays to be recorded separately. However kids do grow up, and will have contact details of their own. We wanted to keep the principles of myDays simple, and using the iPhone address book enables automatic backup whenever you connect to the computer, as well as synchronising with MobileMe and supported calendars.

First check that there are no duplicates in your contacts app. Some mac users experienced duplicate contacts when they upgraded to Snow Leopard. Other users of MobileMe can experience duplicate dates due to MobileMe linking address book entries together

We will upload a workaround for this as soon as possible, however if you are affected you can remove the duplicates by ensuring that your contacts database only contains MobileMe contacts. (Merge your contacts)

Yes. One day. As soon as we can.