I'm really glad to see this post. I love cameras that are small, but full frame. Hence my recent purchase of a Canonet QL19. I expect it is descended from the Hansa, though its lens is fixed.
Now I have added the Hansa to my knowledge bank, but will be unlikely to invest when I have too many cameras already.
6D, 5(film)x2, 650(film)x2, Canonet QL19, EF 15/2.8 & 50/2.5, Vivitar 19-35 & 70-300, Fotodiox Pro OM adapter
Olympus Mju 410, OM-10, XA & XA/2, Zuiko 24/2.8, 50/1.4 & 135/2.8, Ensinor 28/2.8, 80-200/4 & 2x tc, Vivitar 80-200
Apple iPhone 4S & iPad 2