More than just a toy.
"For example, in Notepad mode (draw an N in a circle), you can write up to three block-letter words at a time; the pen then reads back what you've written. In Scheduler (circled S), you can write 'Tuesday 3:45 P.M. student council'; at the specified time, the pen will turn itself on and speak the appointment's name.
Then there's the Calculator (circled C), which is for nerds what 'Pinocchio' is to wooden puppets. As you draw a set of calculator buttons, they come to life, speaking their own names when tapped and announcing the mathematical results ('one hundred sixty-nine, square root, equals thirteen'). "