At the risk of sounding like a noob idiot, I would like to know if this is possible too. Unless the ROM includes an actual radio to flash, why can't it work? Does the RIL have to be customized to the specific baseband code or something? I understand that in general, ROMs never work across different phones due to hardware differences, but this is a somewhat unique came in that the hardware appears to be truly identical, so I can't help but think it might just work, though it may need some slight tweaking for some reason.
If nothing else, since the hardware is, in fact, identical, then I would imagine somebody should be able to take the source code for, for example, Kaoscinate, tweak the code to account for whatever minor differences there are, and release it as a Mesmerized ROM (I would they give credit where credit is due if that happens). If that is, in fact possible, you may be able to find a dev willing to do that much more easily than finding one to do a whole new ROM from scratch.
Posted from my DL09 SuperClean Fascinate with Voodoo