Now its been posted several times there is more the one tobi I personally believe that madara was the first and someone else the second but after browsing through some pics I saw this http://images.wikia.com/naruto/images/1/19/Tobi%27s_left_Sharingan.png http://images.wikia.com/naruto/images/4/4f/Madara_slightly_taking_off_his_mask.JPG
Now compare both pics together it does not look like the same person the latter is more wrinkly and looks older and the second looks younger and a different skin tone so its obvious there is a different skin tone so somewhere between itachi v.s sasuke and tobi v.s konan they have switched. So I narrowed it down to some possible theory's which make sense. A. The original tobi is using a jutsu similar to orchimarus and is switching bodies. B. The pervious tobi died and his apprentice took over. C. A clone.
Now there has been alot of debate on who tobi is obito,izuna etc... But no one has yet provided with something sound that makes sense to my knowledge. Now the obito theory is a pretty good one except it was tobi's left side crushed which would mean his sharigan would have been two and it seems that his right side of his body looks like it is made out of that zetsu goop not the left. Now we all gotta admit that his jutsu is very similar to kamui. So as I see it we got a couple of possibilities. A.Someone stole obito's eye or what was left of it and regenerated it into a more usable form. B. It is obito he survived somehow which I doubt due to the guy in the pic looking quite old. C. It is a relative of obito since as we seen with sasuke and itachi that their eye jutsu seem pretty similar.
I personally think its A or C I feel that the clues have been left for us but we have yet to work them out anyway I would like to hear your guys thoughts on the topic
first of saying that kakashis eye isnt as advanced
as tobis is stupid kakashi isnt a uchia so no shit
his eyes wouldnt be as good. and we dont even know
the basis of the jutsu so we dont know what it is.
we have seen genjitsu alter reality so saying its
a physical jutsu and not a genjitsu isnt to far
fetched. i mean he teleports his body to another
space while his form is still present sounds a
little more of a gengjitsu
tobi is definitely an uichiha and an unknown
uichiha. itachi pretty much discovered tobi
visiting the secret uichiha shrine when every
other uichiha didnt noticed tobi. i dont think he
is izuna as madara said it himself that his
brother died when he was figthihng the 5 kages