Pen v keyboard v Newton v Graffiti v Treo v iPhone
This is an old post from 2010. As such, it might not be relevant anymore.
“For some time I’ve been meaning to test my small collection of PDA/smartphone gadgets to see which of their methods of input was quickest. The iPhone’s software keyboard? The Newton’s handwriting recognition? Palm’s Graffiti? With the possible imminent arrival of a tablet from Apple that will save the world, it seemed a good time to get round to the test.”