see my comment to the cross-post of this at: http://www.hybridcars.com/forums/wat...rin-japan.html
This shows great promise. There are some who have effectively run a 1500 watt generator on Water only, proving that HHO gas can run a gasoline style engine.
There are tweaks that have to happen, but it can and is being done.
Water Hybrids are the wave of the future though, in my opinion. They are happening right now, and can help people save money today for a few hundred dollars.
It's old technology updated for today- we can make an impact now instead of waiting for 20 more years...