Boeing is working with development partners on a fuel cell-based small aircraft
as a technology demonstrator. It seems like a logical use of the technology. From the article, a Boeing research director was quoted as saying, "While Boeing does not envision that fuel cells will provide primary power for future commercial passenger airplanes, demonstrations like this help pave the way for potentially using this technology in small manned and unmanned air vehicles." Now if they can come up with a quiet, personal-sized VTOL craft a la
Paul Moller's Skycar
(which is anything but quiet), we'll really have something.