I thought this would be a cool addition for guages. It could be mounted between the instrument pod hump and the windshield. This way the unit would not be visible during driving just the image projected on the windshield.

http://www.egauges.com/Defi/concept_top.html

That is a neat piece of equipment. Soon drivers will be projecting movies unto their windshield to keep them company while driving. lol

I wonder why they didn't just run it throught the OBD-II port, like these guys and their digital gauge system.

http://magden-auto.com/products/1