Well, some research group is claiming to have come up with a new way to
store hydrogen, which may make it more feasible as a vehicular fuel:

http://www.sciencedaily.com/releases...0907102549.htm

http://denmark.dk/portal/page?_pagei..._schema=PORTAL

http://www.amminex.com/

http://www.thewatt.com/modules.php?n...rticle&sid=763

http://www.investindk.com/visNyhed.asp?artikelID=13670

But admittedly, it's very new and as yet untried in the marketplace.