As of Mac OS X 10.8 Mountain Lion, Apple has completely removed support for 32-bit kernel extensions and the new kernel no longer supports booting in 32-bit mode. As you probably know by know, most GMA950 drivers that were provided by Apple were 32-bit extensions and therefore will no longer work with OS 10.8!
Apple has included 64-bit drivers for GMA950 in the OS X 10.6.2 update. These drivers can be used to provide partial support for GMA950 under OS 10.8
The drivers are painfully slow especially at higher resolutions. System animations lag, full screen videos are almost unwatchable, flash videos are not working properly.
The "partial" fix:
Use the 10.6.2 extensions attached below to get resolution changing and QE/CI. Install using kext wizard or whatever other utility you like. You still need DSDT or EFI string injection.
The real fix:
Well... I think its time for an upgrade. A cheap nVidia 8400GS or ATI Radeon HD5450 will get the job done perfectly if you have a desktop PC. Laptop users however, are out of luck this time.
Edit: I just got a GT210 and it works perfectly well with GE=Yes.