Engadget is reporting that its Japanese site received a cease-and-desist notice from a "mysterious Chinese firm" demanding that it take down images of what may -- or may not be -- a new, slimmer version of Sony's PS3 game console. Engadget didn't name the firm, but if such a company really exists -- and it did send out a real cease-and-desist letter -- it would lend some credence to the possibility that the photos are real.