HP had some interesting policies which were of great benefit to women. I've been told that HP lets people share a position. Two people can work half time with full benefits, then they are evaluated and promoted as one unit. Many women who were raising families opted to do this.
Tactically, this seems great, but the question that comes to my mind is, if such a practice were widely adopted throughout the industrialized world, would this have the effect of halving the power of women in internal workplace politics? The follow on question that comes to mind: What, exactly, is the effect on the power of women in internal workplace politics, of women taking time off work to raise children?