Look at the reflection in the lcd screen, that looks wrong. Also the socket cover looks different from front & back views (indentations). Also left hand side strap fitting isn't in the rear view at all.
I think this is it guys - look at the detail like the indentation around the buttons on the right side, the 1 series-esque profile of the prism, the subtly different area around the lens mount - close to the 1V but a little different, the grip with its indentation deeper than the 20D but not so deep as the 1V or 1D.
For someone with some spare time on their hands and some knowlende of working in a program like Alias Wavefront (surface modelling) it would be easy to build the "5D" from scratch including reflections and stuff. Probably easier that to do in Photshop. For me it seem like an awful lot of work to get the 5D image from hte 20D image by just PS manipulation.
If its not real someone's gone through a lot of trouble. The extra rubber on the left side of the camera, the lack of built-in flash...it certainly looks right for a camera thats pro but not 1-series.
The paper being in spanish, the price in the 'brochure' I assume would be in Euros, which makes the '5D' around £2500 / $4400. Does that make sense as a direct competitor of the D2X ?