netkas comes trough yet again, like with the 5870 series where he made a ROM from the iMac firmware, he once again made a ROM, now for 6870!
cons of this process:
only 64-bit efi, no go for Mac pro 2006 / 2007. for you guys, wait until real apple 6000-cards is released
pros of this process:
the discussion is here
in time for this, I have prepared a test version of Zeus for flashing 6870 cards. please help out testing
Zeus 6870 flasher test version
update: first results are in, new zeus version confirmed to support 6000 series