I would much rather see them pursue foils than wing masts. Much more speed bang for the buck, not to mention the ability to put them on the trailer vs. that huge wing.

I wonder why (any sailmakers please chime in here) someone has not developed some type of an inflateable wing sail, sort of like the parasail, only on it's side, that could be run up a conventional mast, with inflatable battens, more camber and more of a true wing shape, collapsable for storage too, made of mylar or a coated nylon.