Great article on one of my favorite subjects. In the 80's using an IBM PC with a Hercules graphics card I wrote an Arabic word processor so my partner could write to his family in Farsi. The problems of right to left and differing letter shapes depending on leading, middle and ending position was an interesting challenge---not to mention the problem of vowels that occur above and below the letters. That said, I could have done without the attack on DLI---actually having worked with graduates (speaking Korean and Vietnamese) they spoke as natives including idiomatic expressions. Oh well we all have biases and the rest of the posting was excellent!