I think the key point being made is: You have no recourse if a user of your coldpi creates an image of the sd card posts a link to the image as the software is open-source and you don't "own" the software. I like the idea about pre-loading it with BTC but then you may need a register as a MSB with MT license to sell within the USA.
There's no reason for anyone to create an image since I'm sharing compiled Armory source available for free download. The Cold PI kit will be sold to people that does not have the time/knowledge to deal with purchasing a new Raspberry Pi and installing everything on it.
Regarding preloading it with Bitcoin. It's a cool idea but not practical. I do not want to launch the Armory client after I install it on a client's Cold Pi since they cannot tell if I also took their private key and saved it somewhere.