I do not know anything about it, but will be looking into this type of insulation!!  You have peaked my curiousity. Thanks.

Like Lynn, you have peaked my curiosity about that type of insulation.  Wish I had heard about it before we had some insulation work done. 

This sounds a lot like the claims of Icynene, the properties of which are proprietary---hard to find out "exactly" what the stuff is made of.  I have not heard a lot negative (and almost too much good stuff to be all true:)about Icynene.  Can you find out more specific info (manufacturer for example) about this product?  Some info on the net indicates that it is a type of polyurethane foam which means it is a "closed cell" type of insulation (which can be an issue in roofs if a leak develops).  Icynene is or not---it is open cell.  It is supposedly a two part process like Icynene.  The nice thing about the icynene is that if you have a roof leak the water runs straight through the insulation so you know where the leak is.  With closed cell type insulations you are a lot more likely to have hidden damage conditions.

Wow, Charles!  I am impressed with your knowledge.  I have seen one ICYNENE installation in Grapevine, TX and was impressed.  The home was new construction and an impressive example of sustainable living. Check out this link that addresses the open and closed cell products:

http://www.biobased.net/products/index.php

One drawback may be that open combustion appliances may be an issue in the attic space.  Another may be the necessity of separating some of the bio-based products from the living areas in the home by a 15 minute thermal barrier.  This may make it difficult to use the product in an existing home.