Methane/methanol is the biofuel that could but won't. Storage, transport and adaptation problems are trivial compared to hydrogen. However, although it can be made very cheaply, it can be undercut by fossil sources, so until they are out of the game, bio won't fly. Also, most of the tech required is public domain now not patentable. Also feedstock can be so ridiculously cheap, like brush cuttings, lawn trimmings, waste food, dead leaves, human waste, that no lobby of suppliers is going to push it along either. Anyway, that will be our fuel of last resort, it's just sitting there waiting for other energy sources to get rare or expensive enough.