I picked up the PDF (and ordered the print version) of THW - ATH... and I gotta say it is a pretty awesome set of rules.
It's the most clear and well though-out ruleset from THW so far (and I really like all of their stuff). Reading through the campaign and character sections, it was really easy to envision a wasteland or fallout-type game.
I will definitely be building some wasteland terrain (that can double as shadowrun stuff, probably) here shortly to try out some games!
I like the idea of doing a Book of Eli type game...