OK, as promised, it's August, and now my article on windscreens in particular and fuel economy in general is out on Seattle Backpacker's Magazine: http://seattlebackpackersmagazine.com/2011/08/02/three-times-the-fuel.

I've written a blog post that goes with the article. The blog post discusses a few alternatives, including some that may not have occurred to you (they didn't to me): http://adventuresinstoving.blogspot.com/2011/08/windscreens.html

HJ