The guy in the video, my friend Bill B., handed me one of these a few months ago to look at, but didn't tell me how they worked. I wracked my brain trying to figure it out as I effortlessly opened and closed the gate, and finally it was like, "MAGNETS!!!!!" I'm a gear geek, and this is a huge step forward. No more fumbling one-handed with tricky gates, ropes unscrewing screw gates, "auto-lockers" that are total pain in the ass, etc. Huge step forward for boring old carabiners, a subject I thought was pretty much done in terms of huge evolutionary steps.
I've been just dying to talk about these 'biners since I saw the rough protos, now I finally can. I can't think of one thing these do less well than the best lockers on my rack now. Must be something I'll still use a screwgate for, but these truly autolock without the hassle of an autolock. Wicked.