Paper That Acts Digital

Anoto's digital pen houses miniscule camera - Digital cameras, digital camera reviews, photography views and news news Things go digital. That's just the way it is. Computers, phones, organizers, the tools in your doctor's office, music, cameras, movies, even dog tags and picture frames -- they've all been transformed by digital technology.
What about writing: pen & paper?

Anoto's digital pen houses a digital camera, an advanced image-processing unit and a Bluetooth radio transceiver. It also contains an ink cartridge so that you can actually see what you have written or drawn...