One link before turning in for the night. I haven't checked into this Aviation Biofuel but I'm always a little hesitant to jump on the biofuel bandwagon simply due to the immense volumes of biomass required to satiate our hunger for fuel. 

My general feel is that if consumption isn't addressed first, the reality of ever being able to grow enough fuel is a total pipe dream and will result not only in an ecological disaster but will also create a massive security issue. If you think terrorists controlling energy supplies is a security nightmare, imagine the security issues raised when the nations energy source could be wiped out by insects. Don't think it's possible? Google - Mountain Pine Beetle and tell me what you find.