My friends from Peppermelon did that one
http://peppermelon.tv/projects/ab.html
Cool stuff, yeah I really like that. Ate Bit have been sending these kind of links back and forth for a while with demo ideas. tbh though with the richness of material like this out there and the myriad ways to get it, doing demos seems woefully redundant these days.
I'm also an unashamed Cunningham fan:
I don't think that's the official Vordhosbn video, but I like it: