With large leather seats, gleaming wood, gold-trimmed belts, and style befitting a billionaire, upgraded jet flights can be unrecognizable to one used to commercial flights. Quieter, smoother, and of course, far more stylish, private jet upgrades could soon be on offer...

    Wow:  a mystery billionaire just outfitted his Boeing 747 jet to the tune of $600 million!  It took three years to complete and, actually, we find the images of the rooms and finishes to be really gorgeous and...