Zeev - Following up on our discussion yesterday re hydrogen storage I stumbled across an inateresting piece on MOF crystals: <A HREF="http://www.nytimes.com/2004/02/17/science/17CRYS.html" target="_new">http://www.nytimes.com/2004/02/17/science/17CRYS.html</A> I'm interested in your take on this.