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 allwith a large grain of salt.