Why would a pro want to use a test camera at something like the Olympics and/or the world cup. Surely they wouldn't be allowed to use/sell the images made with the test units due to the NDA's they would have signed. Canon or Nikon would have to compensate the photographers enough to cover the potential lost revenues from not being able to sell any pictures. In which case the photogs would just use the test units as teathered cameras and shoot as normal with their own kit so who really cares how reliable the test unit is. No?