If that's really true, I feel sorry for them! My experience with touchscreens has been that they are mostly sort of okay in small doses, if that's all you've got - but if I need to write anything longer than a sentence or two, or read anything that takes longer than a minute or two, I'll wait til I can use a computer instead.
Yep. 99% of programmers use an actual computer to type their code into, rather than typing on an iPad or other touch screen. And 95% of programming still requires manipulating text.