Re: Interesting point about Tobi and Madara.
there is a possibility that there are two madara's, the original who died and got resurrected, and a clone, for example the connection between the 1st and yamato, tobi could have been created before madara died to resurrect madara in the off chance that madara eventually died in battle, however being a clone he had it in his mind to go through with the "moon eye plan" (i think thats what its called) by himself.
however this could be the ramblings of a tired person... btw in the off chance there are people that are gonna have a go at me for posting this... its just my view of what i think, im not saying this is what it is as i have no proof to back me up...