http://www.vibramfivefingers.com/I ran into a guy here on base who was wearing a pair of these he got down in Pordenone, Italy which isn't too far from Aviano here. He told me what I had already guessed about how, when he started using them, the muscles in his feet felt tight after running because he no longer had all the padding in the normal running shoes which takes the muscles of your feet out of the equasion.
I have been running with the Nike free 5.0 and noticed at first that my feet muscles were pretty sore after running. Still no impact injuries. Now I run 10 miles or so and feel no point in my feet now that the muscles are built up. He said he was the same way and is now running 10 miles every other day with no pain or soreness due to the fact that he has now built the muscles up, and he even hikes in those shoes that i linked above. He said he loves them and has even ran 3 miles just for the hell of it barefoot with no pain at all.
Just wanted to throw this out there to let you know at least 1 person out there had them work for them enough to continue to wear them everywhere he does a
workout. I'm planning on getting a pair now as well to try it out.
Advice to anyone who is thinking about getting a pair though. Do not run your yourself to death at first or your will probably kill your feet since they are not used to it even though you may have ran 10 miles a day with regular shoes. I was stupid and ran a 4 mile as soon as I switched from normal shoes to my nike free and my feet were killing me for about a week.