IIRC, the creator of the Palm Pilot carried a block of wood around in his back pocket, pulling it out and imagining going through steps with it to work out the

IIRC, the creator of the Palm Pilot carried a block of wood around in his back pocket, pulling it out and imagining going through steps with it to work out the form factor and design of the applications. Also, I knew someone who continued to use Palm's Windows software as her primary calendar and organization software years after Palm had begun fading away, and despite having never owned a Palm device! It was hard to fault her for it, since it was fast and robust.