Livescribe Echo Smartpen
The Livescribe Echo smartpen lets you transfer your notes from a notepad to your PC or Mac via a USB cable. And not just your notes, it records sound, too, so you can replay a lecture or a presentation (or you own thoughts, just make sure you think aloud, it is not a mind reader, yet...). Once on your desktop (or notebook or macbook) you can work with your notes and recording, store and share them, translate them into text, search for them, basically anything you cannot easily do whilst your notes remain on paper.
The Livescribe Echo has 2gb of storage to let you record and store notes and sound while on the move, it also lets you listen to recordings (if you are old enough to remember the dictaphone, you know what we mean, and you are kinda' old, but that's OK).
This is one very smart stylus pen, which is why Livescribe called it the Smartpen!