Are the factory default settings for the EX1 picture profiles preset to some values or are they just a blank slate waiting to be set to custom settings by the user? If they are preset, are the profiles described anywhere? Were there any changes to the picture profiles in the EX1R from the EX1?

Unless it's changed, I'm remembering that the camera came with no preset profiles.
EX1 and EX1r have the same profile settings, but you cannot transfer your EX1 .suf file to the EX1r. You need to reenter all your profile settings manually :(