Vibram Five Finger Shoes

I have them and I love them. I have not ran in them though, just walk and hike.

I subscribe to the Primal Blue Print way of eating also, so that is what prompted me to get a pair.

They stretch your calves like you would not believe, feels so much more natural than wearing tennis shoes or running shoes.

I love mine, I wear then with the finger socks. I have not run in them yet but I will.
I would not go more than perhaps a few minutes for the first few times and gradually increase (I read that somewhere and it makes sense)
I also run in flats (like Nike Free, 5's) as well as "regular" cushioned running shoes and I just feel better the closer I get to bare foot running.
Trouble is we have a lot of unpaved roads here and they are not for anything but pavement or grass, in my opinion.

Cheers

bex