That script looks cool. I personally prefer modelling in orthographic mode anyway. And I'll switch to perspective every now and then to check the proportions. I find that many functions are broken in perspective and work much better in orthographic view, unfortunately.
That script in that post isn't fully functional. I've taken a different approach by waiting until the view is done orbiting and then convert the viewport. The only issue is that this effectively blocks Orthographic view, but that's not hard to figure out if needed. --CONVERTS USER VEW INTO…