There's a new opening method that's coming out of some of the custom makers in South Africa, that uses the projecting tang of the blade when the knife is open as a sort of leverage tab. They're usually opened with an index finger in a hooking motion. The tang does protrude on this knife in roughly the manner used in those knives, so that might be what they're going for.
Samuel_SturmThe design is referred to as a "front flipper" and it is very similar to a friction folder - but with a frictionless pivot, action on the tang allows the blade to fly open and lock into place.