I found this interesting.. it looks like someone in a lab decided to use those laser ball thingies and created a script to show vectors of the difference between men & women, then created a little slider to morph between them:
http://www.biomotionlab.ca/Demos/BMLwalker.html
Women definetely walk less hunched over, hips swaying more, and elbows tucked in more, but that's sort of a duh observation.
