Thanks, Roger. You know, the human race has no doubt prospered over the course of shoes having heels, high, or otherwise (i.e., heels have not stood in the way of progress). But, fashion/beauty debate aside, I can't think of a single reason that elevated heels on shoes are of any use, athletic or otherwise. If the history were reversed, and elevated heels were the newly introduced craze, the same sense of curiosity would certainly arise.
I don't run barefoot, except from time to time in grass or on the beach, but I do run some in flat huaraches that I make (talk about cheap footwear!). I prefer shoes for my mountain running and would love to find some more serious trail shoes sans heel, since it's taken me a couple of years to strengthen my feet/ankles to not be so heavy on my heels (an obvious byproduct of elevated heels). BTW, I used the phrase "high heels" with some humor, since the phrase is so relegated to women's fashion footwear.
Anyway, thanks again for the review.