I'm not a green, but where's all the fuel going to come frame? Iraq, Alaska, Russia? I know this is a really negative comment but I ain't that sure it'll be cost effective to fill-up in 10 years time. As supply decreases, price will increase. As price increases, demand for seats will decrease. As demand for seats decreases, less planes. As less planes, less pilots...
This will cause airlines to opt to cut costs, UAV, remote control operations etc. Unless fuel cell development comes a long way, very quickly - we could be.....
VT