Have you guys tried the new update for the MacBook Pro's it has drivers for intel HD gfx and the new kernel supports i5m and i7m cpus. you might want to give that a go I think just the kexts will not work as you will need the updated gl frameworks and such as well.

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MotherBoard: Asus P6T
CPU: Intel Core i7 920 2.67GHz Stepping: D0
RAM: 6.0GB Speed: 1.6 GHz Type: DDR3
Disk: 4.11TB
Display: ATI Radeon HD 5770 (PCIe x16) [1024MB/QE/Q2DE/QGL/CI/OCL]
Audio: Apple HDA
Network: AirPort ( AirForce one 54g )
OS: Mac OS X 10.6.4 (10F569)
Kernel: Darwin 10.4.0 Arch: 64-bit