I posted a short video on YouTube showing some of the experimentation with the new AutoCAD 2010 feature 2D geometric constraints and parametrics. The examples were from a beta tester and CAD Consultant Dilip Damle, myself, and AutoCAD Product Designer Jerry Ford,
This video is by no means a Francis Ford Coppola movie production but a quick one put together to show some of the fun experimentation.
Cheers,
Shaan