A feature of English that makes it different compared with all other languages is its global spread.
David CrystalTexting has added a new dimension to language use, but its long-term impact is negligible. It is not a disaster.
David CrystalText messaging is just the most recent focus of people's anxiety; what people are really worried about is a new generation gaining control of what they see as their language.
David CrystalLanguage itself changes slowly but the internet has speeded up the process of those changes so you notice them more quickly.
David Crystal