I have read the article that you linked to at FARMS regarding the Liahona. While I find it to be an interesting article, I also find that there is remarkably little information to draw the conclusions that the article does. Specifically, it suggests that because the Liahona had two spindles to create a fault tolerant system. I really think that the article may cause more confusion than good.
Still, I admit that I am being a stickler, so I will just mention my thoughts here. If someone else agrees with me enough to remove the link, then great.