Glad you guys enjoyed the video. I looked to see if there was a way to embed YouTube, but didn't see it, so thanks for doing it for me, Ritterview.
I also just found another random tandem on a local (Swiss) auction website:
The description is short, and simply states that it's a bike for 2 people, ideal for beautiful summer days, and it's in impeccable condition. Opening bid is the equivalent of US$250. The drivetrain looks interesting to say the least, and I'd be worried that if the stoker sat on it before the captain then the whole thing might tip backwards!