Yelp Hackathon results in an iPad-powered KegBot
youtube.com
youtube.com
I believe they did some minor planning beforehand to get the write components to build things.
(I work at Yelp)
I mean it must be the alcohol right, because otherwise non-alcoholic beer would be just as popular?
But not to take away from the project which was impressive from a analog to digital stance - I would have liked to see more of how they wrote custom code for a locked device? Did they jailbreak it?
I could see this being popular at bars; self-serve beer stations with an electronic tab, used with a swipe of an RFID wrist band they give you at the door. Flag your friends' accounts and buy them a round of drinks with the tap of a button. Add an augmented reality iPhone app to buy a girl across the bar a drink (credit her RFID account), and things are looking pretty futuristic all of a sudden.