Looks like a ton of work went into that machine. Very cool. Judging by the pics, it seems the people playing it were really getting into it and having a blast.
"I wonder what Prince's version of 'Creep' would look like?"
I wonder what Yves Klein's "Monotone Symphony- Silence" would look like. Come to think of it, Klein made some pretty cool machines of his own with Jean Tinguely. Anyway, I had little knowledge of Eliasson before your blog but I've been reading up on him. There were two million visitors to The Tate when his The Weather Project was there, which strikes me as a extraordinary number.