Perry mentioned this http://www.microsoft.com/downloads/details.aspx?FamilyID=3bd8561f-77ac-4400-... as a way to "kickstart" Windows guests that works better across different releases of Windows than the unattended.txt files.
Would someone mind taking a look at this and seeing what the reality of installation is to modify an ISO image to make it "fully automatically installable"? If it is possible for a user to generate an ISO and we have instructions for using it with "cobbler image add" I think this feature is set.
However, if this requires a extra server or something, we have more work to do -- such as figuring out how to talk to it over the network. In that scenario, looking at more direct integration with the unattended.net stuff may be a better route. I'm willing to do this but would prefer if we can just treat it as any other OS image. That may not be the case.
--Michael