Now I looks at it, it looks rather similar to a stab once you ignore the curves! the top tube curves down the same as a stab, and the linkage is almost identical apart from the shorter rocker link and the pivot around the rear axle instead of above! just imagine a curvey stab with a low stand over height, short rocker link, and enough sex appeal to top the playboy mansion! nice rig anyway.
it only looks simialar , the main diff is the shock is floating in the frame being held by the shock mount on the link and a kind of extension of the chainstay past the pivot