Pangaea is a utility to help you utilize your Google Latitude location. Pangaea turns GPS coordinates like (42.29, -71.26) into codewords like "Olin College" so that other things you make will have an easier time understanding where you are. After you give it access, Pangaea reads your secret Google Latitude location feed to produce a secret Pangaea location feed.
I've developed some Arduino software to create a "Weasley Clock" in real life. In the video below, the clock is basing its position off of Olin College's Marauder's Map system, but it works just as well with Pangaea. I'll post the Arduino code once I wrap the project up and work out a few little bugs.