Today, netkas released PC-EFI 10.6. It is based on Chameleon RC3. According to his post:
New in this release:
* Support for desktop Radeons 4300/4500/4600 in GraphicsEnabler
* Added system-id fix, system doesn’t forget your keyboard settings anymore
* Added fix for lynnfield cpus
I put together an unofficial installer package using netkas' source. Just run it and reboot! You can also use this on a fresh system to install Chameleon.