I've just come across this article, which I found interesting:
"Tim Brennan on the VivoBarefoot" http://www.naturalrunnermag.com/107/tim-brennan-on-the-vivobarefoot/
Article by Tim Brennan, creator of Vivo Barefoot
Isha 77
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Another article about Tim Brennan's VivoBarefoot concept, his repeated twisted ankles when he was playing tennis as a serious player, and how & why he cut down his Nike Air Huarches & ended up creating VivoBarefoot:
http://www.vivobarefoot.com/uk/community/?p=1170