I have always thought barefoot running is the most dangerous thing a runner can try (Just look at the bleeding feet of Abebe Bikila who won Gold at while running barefoot at 1960 Olympics).
My thought on barefoot running was changed a little bit when I read the following advice on runners world magazine.
Go Barefoot Once A Week
Strong feet and lower legs, plus flexible ankles, equal fewer injuries. One of the best ways to gain this strength and flexibility is by barefoot running, according to McMillan, because you have to work harder at each toe-off and landing. “Try to do a few barefoot strides or some light jogging equal to between one and three laps of a track once or twice each week,” he says. Level grass works the best.
I will try running barefoot and see how it goes.