I read this article with both amazement and bemusement. The technique you describe has been in practice for decades, but without a computer. Samuel T. Orton realized that dyslexics needed to be explicitly taught letter-sound relationships, a knowledge that most of us acquire automatically. I have been in private practice as an educational therapist for 30 years, and the results using Orton’s techniques (sometimes termed synthetic decoding) with dyslexics are consistently highly successful.