I'm really not trying to offend but when one backs off and looks at it, the DAO pistol really looks like one of the dumber ideas of our time.
I suppose my point is that we wouldn't abide a trigger with DAO characteristics on our long guns so why would we do a switch-er-roo and laud the wretched things on our handguns?
Another point to make is that I want to carry a handgun that has the same fine trigger capabilities as my rifles have rather than one that impedes with a consistently long, heavy pull. I don't mind safeties and simply don't want to deal with DAO pistols. I'm not required to use them and don't enjoy using their triggers. When it comes to the safety of the DAO trigger I'm unconcerned as I more about shooting than carrying, and other designs with nice triggers may be safely carried with perfect satisfaction. Thankfully, there are different strokes for different folks and they make handguns like the one below for folks like me. With the flip of a simple switch, a fine trigger is made available for every purpose.
Actually, I've been warming up to the notion of the TDA guns that 18DAI and others mention, a trigger concept that's looking more sensible lately as a reasonable alternative to the single-action-only designs.