Will it revolutionize transportation like the Segway did?

I really doubt that the hydrogen boost systems touted actually generate much hydrogen, if at all. Most probably only generate some steam that acts as a water injection system to cool the intake air charge.

Hydrogen, as a fuel, is another farcical dream perpetuated by politicians, environmentalists, and policy wonks. Hydrogen, itself, is actually a poor carrier of energy and must be stored under cryogenic conditions in large, insulated pressure tanks. There is no solid discussion of the infrastructure build-out costs for the "hydrogen economy" ranging from production to distribution.

Every time petroleum prices spike upward, the fools, dreamers, and crooks come out. The hydrogen boost systems definitely fall into the crook category.

Look at the amount of water required to produce just one kilogram of hydrogen. Also look at the energy requirements.

There is noway a small plastic bottle of water, attached under the hood of a POS car, could produce enough hydrogen to affect fuel economy. Was most the nation absent when physics and chemistry classes were taught?<ul><li><a href="http://www.iop.org/EJ/article/1748-9326/2/3/034007/erl7_3_034007.pdf?request-id=ef9d5b28-2160-4a43-990b-70f87b92fe50">Debunking the hydrogen economy...</a></li></ul>

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I figure I can use it to generate enough power to start making my own "Brown's Gas" I just have to iron out a few bugs. I am currently looking for investors if you're interested.

Basically, the AFRs have to go waaaay up. To do that, the O2 sensors would have to always detect rich, i.e. no O2, to lean back the fueling. But I'm sure most cars would quickly throw a code when they determine they can't get back to stoichiometric within their programmed ranges.

And even if it DID reduce fueling, the AFRs would be so high that your exhaust valves, manifold, etc. would probably melt after a few hundred miles.

They are approaching it from the wrong angle, in my opinion. It requires a paradigm shift to make it work. The "Hydrogen/Solar Economy" is inevitable. We can't expect too much of a technology advance in this area as long as "WE" have all this oil to sell. That's not good business sense. ;-)
If oil wasn't so cheap and easy for the last 100 years, we would already be doing it.
If I built a house today, it would incorporate geothermal, solar thermal, and PV's. Wind is great but it takes a pretty big propellar to run a house! It's better suited to large-scale power production. Stick some out in the lake for almost free energy.

Not that that make it right of course.

Conceptually, Hydrogen could be a huge win. Economically, it's a long way away unless there is a huge breakthrough or paradigm shift in production.