@ weenerdog: I have seen somewhere Intel would rename some of the better C2D chips to iX series. As such, we might get a chip that, while named iX, is in fact a C2D processor.
Doubt that. 32nm parts are cheaper to manufacture and provide better performance so it would be idiotic to rename ancient chips that are inferior. Intel's naming system is already so confusing that throwing C2Ds to the iX mix would make it ridiculous.