Phil Broder stocks it at his kite builder site,
it comes in all different weights, backpack thickness, tent, tarp, super light weights too, like Orcon, that delicate. It's a laminated product, the strands aren't woven, it's "bonded",... comes is a couple of semi translucent colors. There's a Black 1.0 weight that's a perfect replacement to the out-of-production mylar-backed nylon I used to prefer for custom leading edge sleeves.
I believe those printed rev-sail folks in Europe are also offering a model of Cuben fabric in the near future, although I'm not sure of their exact weight.
Misses told me to buy some and give it a try,...
..... it's 35 dollars per square yard, Icarex, on the other hand (always reliable, dare I say the best fabric for sport kites?) is like half of that amount!