RFID with spottily playlists.


I have recently seen the Spotify Box which allows the users to use RFID tags to play certain playlists from Spotify. I have searched and searched to find any sort of tutorial/code, but no success. I know that the guy who created it used Arduino/Applescript/Processing, but unsure how to code it?

Does anyone know of a way for me to get started? Anywhere to look that would be great?