I agree, having owned (among others) a Psion 5mx and a Nokia N900 in the past. You could write full docs, compile C programs or write papers in LaTeX on a pocke

I agree, having owned (among others) a Psion 5mx and a Nokia N900 in the past. You could write full docs, compile C programs or write papers in LaTeX on a pocket device, in theory. In practice of course, I never did when the novelty wore off after a few tries.