This time via a Chinese Web site (which is now timing out, perhaps due to heavy traffic), and reposted on MacRumors.com, Engadget, and others. Just what this photo purports to show seems a little unclear to us, but it may very well be the left side and keyboard tray (minus the actual keys) of a new MacBook Pro.
This does seem to fit in with recent rumors that the new MacBooks will be made from, if not one, then a very small number of aluminum sheets, bent into shape using a process referred to as the "brick." (Although whether that refers to the manufacturing process, the initial block of aluminum, or something else entirely, is not clear.)
As always, take all so-called spy shots with a large grain of salt.