I got off-stage just a few moments ago, but since Dave McClure already blogged about it, I would go ahead and post the source code so Dave could link to it.

"Why are you awesome?" source code

The version of the client that the code is using, is specifically for PHP4, you can just replace the client/ folder with the PHP5 version depending on your host settings. The source code also includes the database schema that "Why are you awesome?" expects.

Happy hacking, and add the app!