QE/CI WORKING in Mountain Lion for Nvidia NVS 4200M 512MB (1GB not available) (Test via Launchpad and OPEN GL Extensions Viewer)
Working on a Dell E6520 8GB i5 Nvidia NVS 4200M.
no DSDT.
After removing all ATI & NVidia kexts and putting back one by one I entered device IDs (0x1056....) in S/L/E/NVDAGF100Hal.
At the first moment I always got KP when booting without -x
BTW: Bluetooth, Network, Audio (VoodooHDA) working. Wifi not, Restart not working -> working on it.
Update 10.8.1 installed during tests (due to desperation ;=)