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Originally posted by island911
 good one, pwd.
It is funny, how people forget that diesel-electrics have been around for ever.
Regenerative braking is the only twist that gives hybrids a second glance.
Techwee, good point. Though I thought that the whole idea of a hybrid was to have a clear conscious . . . that you're being more 'green' that the other guy . .. that you get to drive whatever type of planet polluting/massive heavy-metal battery lugging device you want ... as long as it means well. . . .and has that green cliche HYBRID logo on the back. 
Okay, lets say you are right about the "size" thing. What are the greeners going to do when they reallize that their hydrogen hybrid need to be huge (to handle the hydrogen w/o massive inefficient compression equipment) ?
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I'm a major investor in an electric/hybrid vehicle company. I've been knee-deep in this stuff for 6+ years. The energy gained by regenerative braking on a lightweight vehicle is more beneficial to the marketing aspect of the vehicle than to the battery charging.
As to size, it's rumored there will be hydrogen-powered notebook supplies on the market in 18 months or so. The previous inability to make these things small has been supposedly overcome.