Graph Your Friends' Demographics

Two days ago I was talking with my co-worker about how someone needs to develop an application that tracks the demographics of your friends. Then yesterday Joshua Fraser of Clemson University launched Platypus. Platypus is a simple application that you install and it automatically runs through your friends to get their demographics. It breaks down the gender and relationship status of your friends. It would be cool if there were additional features such as geographic location, etc.