Hmm...simple & not too big on aesthetics.
One interesting consequence (intended?) of the design is that it prevents stress on the idler arm (both the arm itself & the idler arm pivot).
It basically appears to put most of the vertical force transferred via the tie rods onto the frame of the truck.
One thing, though: doesn't the centerlink translate up & down some small amount as the steering moves from one extreme to another?
EDIT: Doh! Nevermind; CL doesn't move up/down; rather fore and aft as XOC mentions below.