@TheJoe: Well yeah, but that's not the point ... .
Some people ... like me ... think keyboards are a prison.
EDIT: I'm exaggerating, keyboards themselves are quite limiting in the speed and accuracy department, so I'm hoping someday there will be better ways to get a lot of writing done, be it voice, gestures and keyboard all combined ... doesn't matter. It's just slow. What is a prison though, is having to sit down and not being able to move while working all day.