A Matter Of Perspective
I have a simple solution for the man from Saudi Arabia who wanted to type from right to left with his Atari. Just turn the monitor upside down and type POKE 755,12. This will flip the characters upside down and backwards.
If a computer user wants to read right to left, all he needs to do is view the monitor through a mirror. For hard copy, he could use a sheet of carbon paper to produce the same effect on the back of the printed page.
Thanks for your interesting suggestions.