I bought them today! Couldn't wait for this 'new revolution in running' but I have to say that so far, so good. I suffer really badly with shin splints, despite physio and podiatrist advice so when I did a normal run, I was shocked to notice no pain - an alien concept for me! I had slight tingling in the toes which tells me I'm not fully striking the ground on my big toe so I have to be more aware on next run as it does change your style slightly.
Very pricey though - nearly had a heart attack when I handed over my credit card!