A gallery, the package download, and more information can be found at the JVL webiste:
JVL was developed at the Center for Experimental and Constructuve Mathematics at Simon Fraser University in Vancouver, British Columbia, Canada - and in my bedroom.
JVL development was sponsored by the National Sience and Engineering Research Council, Math Resources Inc., and Telelearning NCE.
I would like to thank Dr. Michael Joswig, Dr. Konrad Polthier and Dr. Jonathan Borwein for the invitation, the opprtunity and the guidance.
I hope some people will find JVL to be a somewhat useful tool for building dynamic documents.