Just FYI. I see no reason that, if the code could be hardened up a bit, a kegbot kit could not be sold (put linux on a plug computer, or make a liveCD to reduce costs (people can choose a plug computer ($100-$150) or provide their own hardware (spare laptop) and then a kit of the right valves/solenoids/line splicers for a DIY install. If someone drops $1000 on a multitap keggerator, what's another couple hundred bucks to make it sing and dance
Someone has taken metered dispensing, RFID activation etc. to the commercial taproom! This thing is damn cool...
http://www.tabletap.co.uk
And the guys at Facebook have (or had..I heard HR made them take it offline) something called Keg Presence. Uses corporate ID to indicate who's at the keg, etc. Uses their Facebook Presence social networking code, and applies it to a barrel. they have not indicated any open sourcing will be doable, but I do know a few people there, would be interesting to take a peek at what/how they do..