PHP Gamercard API released on Google Code

I've put up on Google Code a small new project that I'm working on called the PHP Gamercard API. It's basically a set of classes for working with Xbox Live Gamercard data. It takes advantage of a web service provided by Duncan Mackenzie for retrieving structured data about individual Gamertags. You can expect to see something in Drupal that takes advantage of this, once I've got some time to write a module that utilizes it.