Well, I just gave Joe @ ZPacks the go-ahead in the form of cash to go ahead and begin work on my 11' x 6.5' modified diamond tarp made out of his .51 oz. cuben material in Olive Drab color.
I can't share his early prototype photographs of it yet but I really like it for all of the ~3 oz. (minus lines) it weighs. Unlike diamonds with the sharp sides coming down straight down to a single point, the sides on this will have multiple angles resulting in 3 tie downs per side. The ends also have a small beak to them which are tied off to the hammock suspension.
Joe has done some initial testing in strong winds and rain downpours but not any serious wind driven rain yet. He reports it does quite well in the wind and no problems with downpours either.
Joe, a hardcore ground dweller, has been playing with hammocks quite a bit lately and he might have some other hammock related items in the near future but I can't comment on those yet.