Actually I have also noticed that Chameleon RC2 on Snow Leopard does not load properly the Extensions.mkext files for all the following 3 (three) directories:
1. /Extra/Extensions.mkext
2. /System/Library/Extensions.mkext
3. /Library/Caches/com.apple.kext.caches/Startup/Extensions.mkext
I had to manually create the above Extensions.mkext files
Also the beta boot files EFI V10.0 , V10.1 and 10.2 each produce different bugs on Chameleon RC2 and RC1.
Finally the DSDT.aml file does not get recognized properly on Snow Leopard 10.6 producing KP
(The file DSDT.aml is recognized properly only on 10.5.8 but not on Snow Leopard 10.6)