I finally bought a pair of Vibram's last night (Komodosport LS on the advice of the good folks at REI). I ran a short loop around the block last night (maybe 1/10th of a mile) just to see how it felt. It doesn't change my stride, i usually land fairly square-footed rather than on my heel, but man it looks like it is going to be tough to run with these on sidewalks/roads just due to the lack of cushion. Any advice/tips/experiences?
here's a review: http://birthdayshoes.com/komodosport-ls-vibram-fivefingers-review
btw, i got a 20% discount on them at REI using the big sale's current one-time membership discount, plus i'll get 10% back.