The AMK escape bivy is now available on amazon for $40. I just bought one. Only one review there and it was very good.

I have summer and fall camped in the northeast on the AT using the AMK emergency bivy in place of a sleeping bag and it worked fine - except for the interior condensation. So I expect if this works half as well as AMK claims, it will be a winner.

Here's a link --
http://www.amazon.com/Adventure-Medical-...0550&sr=1-2