I agree with your point, but remember that the average person ten years ago was just as technically illiterate. We look through rose colored glasses because, b

I agree with your point, but remember that the average person ten years ago was just as technically illiterate. We look through rose colored glasses because, back then, we were able to use Excel, Word, (insert your program of choice). The people in our social circle were also able to use them. However, this was almost entirely because of who we hung out with. The shift to closed devices (may) eventually have an effect on hobbyists, in the same way that the average person no longer knows how to change the oil in their car, but for now there's little evidence that iPhones and tablets are limiting the number of young, competent programmers (or even the number of IT hobbyists in general).