i just put my ps3 which is a 3001 model into demonstration mode 4.80. i was on retail 4.80 and just looked up a 4.80 bypass and sure enough it was shop firmware.
keep in mind i did this on purpose cause i have a super slim which is my main ps3 i got the 3001 model for jailbreaking and you cant do that to 30xx models so why not turn it into a kiosk. i even put some HD ripped ps3 trailers from youtube and some demo's to make it feel real it plays retail game to so ya.
i got a IDU gamestop disc to see if i can use the install packages i will let you now if there are any good demos on it.