So, there's no way to have the Mac OS on the RAID0?
No. Even Linux fails to recognize the array. The problem is that this isn't really RAID. Its a bunch of drivers that ship for Windows; the processor sits there and copies the data over as you use the array in Windows. I wouldn't risk doing anything with these drives without that special windows driver.
To make a long story short, if you already use the RAID functionality of ICH10R then don't touch the affected drives from any operating system other than Windows: you will corrupt the array.
If you don't already use the ICH10R raid functionality, DON'T! Get a proper dedicated hardware RAID card that makes the array drives look as one drive for all intents and purposes. If I knew that this was a gimmick and not a hardware RAID I would have never wasted my time. It creates more problems than it solves.
For the benefit of future generations: I have the system booting from USB drive on a P5Q-E with IDE setting set to RAID in bios; putting chameleon on the system drive, which is not part of an array, after installation results in boot1: error.
I used a combination of the following:
From the second I'm not using the whole linux and grub thing, I just grabbed the kext he mentions at the end of the post.