You know that the infuriating thing is? back in '97 I worked at ibm and mentioned that there should be a "computer whiteboard" that plugged in like a mouse for writing and drawing... at the time my boss said no one would want such a thing as everyone typed at work.
I got one for Christmas this year. I haven't used it as much as I would like because it does take some time to create a nice picture! However, I do have a few things I drew up with it.