Seriously, do you think that they did not special effects for the following iphone commercial? I'm not a cameraman, but i guess it's simply impossible to get this quality by just filming a real device.
Nobody is complaining that they fake the screen of the device in a commercial. Yes, it's hard to film that. But when you are showing off imagery that is supposed to be coming from the device it had better be accurate.
http://www.youtube.com/watch?v=vSAje0EgYjY