October 25, 2012
Apple posted Mountain Lion update for new macs (new imac, macmini, 13″ rmbp), which was shipped with custom 10.8.1.
The update is 10.8.2 with very fresh video drivers.
Nvidia drivers – 304.10.20f04
AMD drivers has acceleration support for 7xxx series (in amdRadeonAccelerator.kext), but no framebuffer driver for these cards.
P.S. no good news for 6970.