The underwhelming web presence of Nathan Parry

Has no one else done this already?

Imagine that you have an address book, full of people. People have birthdays - birthdays are one of the many things you forget. Imagine further that you use an online calendar. Wouldn’t it be nice if those birthdays automatically showed up on your calendar? Yet I can’t seem to find a free app to push birthdays from my Address Book to Google calendar.

In disbelief I’ve started to write my own, but someone else must have already done this, or I’m missing some obvious built-in way to do it. Anyone?