Nvidia has just released the 295.59 version of the binary drivers. This comes with a new list of supported card models, including the ones seen in HP DV6T-7000 laptops and the newly announced Macbook Pro Retina laptop by Apple:
http://www.nvidia.co.uk/object/linux-display-ia32-295.59-driver-uk.html
We got the DSDT information from one of the HP laptop users available here:
http://bugs.launchpad.net/lpbugreporter/+bug/752542/comments/521
Although this should pave the way for a better hybrid-graphics, there are still no reports of compatibility.