Senior Product Manager, Diane Li, taught classes at Autodesk University that extolled the virtues of an electronic review process made possible by Autodesk Design Review. Autodesk Design Review lets you view, markup, and measure designs without the need for paper; however, sometimes there are situations where there's no substitute for paper. Fear not, Autodesk Design Review has a printing capability.
One of the Autodesk Labs exhibits at Autodesk University 2007 was a technology preview of a digital pen technology. Working with Autodesk Development Network partner, Adapx, Software Architect, Ben Cochran, instrumented a version of Autodesk Design Review (a special Labs build) to accept markups created by a digital pen.
For those who were not fortunate enough to see it at AU, you can see it for yourself via the miracle of YouTube. See Ben as he makes several annotations on a design printed from Autodesk Design Review including callouts, notes in a separate notebook, and a photo (that's Diane Li) taken with a digital camera:
For those who do not have access to YouTube:
Thanks Ben. Exploring ways to turn a once output-only medium, paper, into an input device is alive in the lab.