Funny you should have posted about FCEVs, and at the time you did. I found out about this company just this morning, was fascinated by the technology and their business plan, and was about to post link at 10:30 this morning. However I ran out of time for my chauffeuring duties, so decided to leave it until later.
Riversimple: UK based Hydrogen Fuel Cell Eco Car CompanyI have looked at Hydrogen Fuel Cells for vehicles. There is even a Hydrogen Filling Station near by!
I posted a bit on the Electric Aircraft thread, about Loganair planning to to modify an aircraft, powered by electricity, for use in the Orkney islands. I imaging it will be Hydrogen powered, as Orkney has a glut of cheap Hydrogen from the Tidal generation trials. And for an aircraft, HFC makes a lot of sense.