Be careful to update. Make sure kext are there and run kext utility.
We need some tweaks for sound, restart, sleep and reboot.

My 10.6.8 doesnt starts right now.
Repairing later.

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Asus K40IN vx128
T6600 2.2GHz, ICH9M chipset.
nVidia GeForce G102M CUDA 512MB
Atheros 9285 Live, 2GB 800Mhz, LED display
OS X 10.6.7/Windows 7 ultimate x64
MacBook Retina LION. 512GB SSD. 8GBMem
iPhone 4s 64GB iOS 5.1.1
Samsung GALAXY S III
New iPAD 16gb iOS 5.1.1