I realize the OS will definitely be bigger, without a doubt. There are also a few concerns, such as using different bootloaders for the various architectures, and then autodetecting the right kernel, and such. Is there a demand for such a thing?
My brother also mentioned he would like to be able to start up the OS image once in Wintendo, or some other OS, in cases where he can't restart the computer, or the computer can't boot up from USB. What would it take to include some virtualization platform in the livecd-to-disc tool that could work in Wintendo so all the user needs to do is run some program and get a popup window with their ever so useful persistent Fedora LiveUSB?