Our latest confirmed speaker is Grand Rapids Technologies, who, oddly enough are here in Michigan
They make stuff for experimental airplanes, but their equipment has been installed in certified aircraft as "Entertainment Systems". Now, personally, I'd rather have one of these in front of my wife to watch. She has quietly told me she doesn't like watching the fuel gages. This would help answer the age old question of "Where ARE WE".
And, incase my old wet vacuum pumps fail, it might also be handy. Of course, it's a bit more than a portable DVD player, but a lot more functional.