Quoted from pezpunk:it just runs through the browser in full-screen mode, so any device with a browser and internet can run it, even one of those $100 stick PCs.
First, kudos on this one. I'm thinking 24" touchscreen with RPi or similar. That will allow me to build a nice thin mahogany box to house both the PC and the screen. Then I can either hang it on the wall or simply set it on the counter of the bar. I'm anxious to see how this progresses.