Handwriting has at least one advantage over a full qwerty keyboard: It's easier for one-handed text input. I remember taking notes on a small (almost netbook small) laptop years ago during a serious of walking tours of Rome and elsewhere in Italy. I ended up turning my backpack around and placing the laptop on it so that I could type. An actual pen and paper notebook would have been easier to use, but I wanted my notes on my computer. A tablet with good handwriting recognition would have been exactly what I needed then, and I can think of other instances where people might prefer it to a keyboard. It's exactly what would be useful for taking notes while standing or walking.