that's why there is a fineprint saying "subject to change without notice".
there is a similar situation with the ethernet shield, the eagle file left in a resistor that makes auto reset to not work.
I would not go as far as calling them "clone" makers. after all, this is supposed to be "open source". cloning implies copying without authorization. True there are some projects out there that pretend to be open source by doing things like leaving key component values out, extra component added or removed, etc. arduino's case is certainly not as the above post is implying, as you can email Massimo directly can he will tell you exactly what the correct circuit should be.