First of all: Thanks revivery for the great work!
I can also confirm, that this version is not compatible with firmware version 1.00F. After an update to 1.00G, as described in the wiki pages, the camera boots fine with CHDK running in the background. I did not test everything thoroughly, but at least the RAW mode and different overlays like zebra, live histogram, battery indicator and CCD temperature are working perfectly.
I'm looking forward to using the RAW pictures and getting into the scripting functionality.