Woah... hold on there.
It is on the radar outside the US. I have a Hydrogen Filling Station that just went up less than 2 miles from my house. It's part of a pilot program here in Japan. The cars will be along shortly here. While many people are just moaning about the future, there are consortiums here actually building and trying to prove and improve the technology.
We've come along way since the TRS-80, but we had to build PC hardware to improve efficiency and reduce costs. Where would we be if we didn't build for the last 20 years? You have to admit that these last few decades moved pretty fast, Skuzzy?
As a matter of fact, I'm going to visit some of the people next week at the organization building these about doing an article for some of my clients and perhaps a few Engineering journals.
I'll post a photo some time next week...
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Oh, and by the way... the US will be at ~$10/gal by 2012 or so. And no one is slowing down production and there is no need for any more refineries in the US. You only build refineries when and where you have the crude supply. There are no hidden, secret, untapped wells or new large sources in continental US, so don't worry about refineries. One reason refineries haven't been built since the 1970's is that the US reached its peak production in 1970 and has been on the back side of the supply since then.
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And... LPG seems like a pretty scary fuel also, but taxis have been running on LPG in Japan for decades without incident.