Write an email
The pattern of dots on every sheet of paper is unique. (Livescribe says the Anoto system provides enough values to cover several continents without repeating a number.) So if you write on a specific piece of paper, the pen can use the dots not only to figure out what you wrote, but to figure out where you wrote it. Scratch a note on the back of someone's business card, for example, hook the pen up to your computer, and the software sends an email of your note to the card owner. Scratch a rant out on the back page of a magazine and you can automatically send a letter to the editor.