A company by the name of Swift Enterprises announced earlier this week that they have successfully developed an alternative to 100LL aviation fuel. The press release doesn't provide much detail about the fuel itself other than it will be able to "seamlessly replace" 100LL in the aviation market. Their website lists 5 advantages to the fuel which include a 15%-20% range increase and no need for stabilizers. They are also claiming that no engine modifications would need to be made in order to use this fuel.

I'll probably remain hopefully skeptical for now... If this is in fact a feasible solution the next questions would involve supply and distribution. If they could start building the infrastructure tomorrow I'd imagine it would still be several years before you could find an airport nearby with a Swift Fuel pump. This is of course after any number of certifications and testing were complete. For a good wrap up of the issues at hand check out the AOPA Regulatory brief.