While it seems neat, I don't see how this guy plans to make any money.
Consider the following:
1.)I'd hazard that only a small percentage of those actively carrying a concealed handgun are females.
2.) This holster requires large breasts. I'd say a C cup is the minimum. What percentage of those gun toting women have large enough breasts? What percentage have perky enough breasts?
He's obviously working on building a dating site for gunnies, and building up contact info for hawt wimminz who like guns.
In all seriousness, I was a bit bothered by the elbow sweeps. It's a good carry location from a concealability standpoint, and it's a HELL of a way to give a rapist a wake-up (woman clenches arms to chest defensively, he thinks he's in control, then suddenly BANG and he's losing life by the ounce). It's a great decoy location for a victim demographic that tends to be targeted for attacks based on control and overpowering.
All in all, I wouldn't recommend the use of one if I were a woman unless I was a serious gunnie and understood the cross-arm concerns. The intent to market it to novices is a misleading safety concern.