The evolution of my 3D rig continues with v1.3, which came about because of the issues I had with the previous versions:
v1.0: Too bulky, can only do landscape 3D pictures.
v1.1: Compact but cramped shutter control box, but reliable. Can only do landscape 3D pictures.
v2.0: Used only AA batteries for the shutter control box and cameras. Heavy (7 AA batteries were needed), and can only do landscape 3D pictures.
Last year, I was trying to resolve the landscape-only issue and cramped shutter control box with v1.2. I had some success with taking pictures, in both landscape and portrait mode, but the wiring for the mini shutter control box broke pretty easily.