Wow! We just gotta have us one of them! Can we? Can we? Hm?
By the way, just out of interest, is it likely that the algorithm for tangs will be updated at some point so that the pectoral fins (?) flip up and down rather than sway back and forth? I'm guessing that once the fins have been joined to the body mesh that it won't be too much of a problem as far as the mesh is concerned, but I'm not a programmer so I don't know how easy or tricky it would be to update that aspect of it.