Okay, so far all Theory and Conjecture... and everyone is entitled to their own opinions. I find it hard to beleive that there is not someone who uses this type of lens in a Creative, or Artistic way?
In MacRumors:Forums, we have "Forum Spy", so what is in a name? Cell phone cameras are far worse, or just as bad as we are making out this lens to be.
I knew someone who was an excellent semi-pro photographer when I was little, and he had one for his 35mm SLR. There's nothing 'creepy' about it.
Actually, I think his actually *was* a lens with the mirror integrated in it, and it attached directly to his (Nikon? Minolta?) camera body. The one you posted screws on like a filter, so I could conceivably use it with my G9 + filter mount + step-down ring. Hmmmm.