Physical discomforts of writing a novel on a smartphone aside, I am trying to wrap my head around trying to do the same with a device that needs T9 as input. I type slow on a touchscreen as it is, frequently losing my train of thought before I can get my whole comment out, the comments themselves often turning into meandering adventures in Fuzzy Logic Land as a result. I cannot imagine banging one out on a number pad, and I lived through that era, even working a job where cell phones were a no-no so we got pretty good at firing off quick texts without having to look at the keys. Short messages? Can do. Lengthy HN replies? Count me out.