This is fascinating! I haven't thought much about POV, really - I read Ursula LeGuin's chapter on it in "Steering the Craft", but it felt too big for my head, sort of? Like my horizons were being stretched too far at once. ;P Your post is more compact, easier to handle, and also "third person personal" finally makes sense. :D

*goes off to read the post you linked and play with POVs some*