Use digital technology long enough and you start to become dependent upon it for such mundane tasks as spell checking. That means when you pick up a garden variety ballpoint pen you’re back in dictionary and “I before E except after C” territory. Like LiveScribe, the creators of the Lernstift digital pen hope to bring handwriting into the 21st century by having the pen vibrate to indicate when the writer makes spelling and grammatical errors or exhibits poor penmanship.