There is no difference, Orbiter is Orbiter is Orbiter, however, space concerns prevented me from putting Firefox on it, and I want to do more work in this area to try to put in a web browser designobj into orbiter.. but not now.. do not ask.
p.s. to clarify. There is no difference between what is running on a media director, and the other orbiters like win32, winCE, etc. none.. zero.. zilch.. The Orbiter running on PadOrbiter is literally the native linux orbiter, same as would be running under UI1, just running by itself.