That white Intrikat frame is a work of art. I've wanted a white frame for years. I think this is the one.
The Fly brakes are very interesting. Novel idea, but why would an external spring be better than the ones in the arms? I'm a bit suspicious, they used to make brakes with a similar looking external spring that actually attached behind the arms. You had to bend it out to get more spring tension. They were called caliper brakes, and they pretty much sucked. These might be something completely different, but that was the first thing I thought of when I saw them.