While I am sure all racing in 30-50 years time will be green and clean emmissions there is more chance of pigs flying past the Bungalow than seeing a race like this in 2009. I am sure we will see a parade of at least one bike powered on cow dung but there will be no race.
Thinking of the wider picture this could be the future of road racing. The machines will have much less power, there will be a lot of inovation and a lot of interest. Just how the TT started out 100 years ago. Still think it is some way off though.
A racing bike powered by Hydrogen just sounds mega dangerous.