This chapter, bro...
OMFG, I've always speculated that Tobi was Obito because it didn't make sense for him to be Madara, nonetheless; the chapter really made my heart drop. The way the flashback led into the present was magical. Kakashi's face housed so many emotions and to see Gai with same facial expression really had me flipping out. A very very emotional chapter.
In reference to all those who have exceeded maximum butt hurt about Tobi being Obito: It was always obvious, so why are you mad?
When Obito apparently died, his right face(along with his body) was scarred by the rock that fell on him. When he fought Konan, half of his mask was broken, in which, half of his face was revealed to be also scarred. Obito gave Kakashi his left Sharingan which is why Obito wore a mask that hid the hole where his eye should be (it was only once Obito obtained the Rinningan that it was deem necessary to wear a two eyed mask that revealed both eyes because he was missing the eye he gave to Kakashi). The Sharingan that Obito possess has teleportation properties just as Kakashi's (no coincidence). When Obito was young, he wanted the world to be peaceful, now he is trying to make the world peaceful through illusions.
To those who mention plot holes: the damn series isn't finished! Let's wait for more intel before we start no scoping Kashimoto. The next chapter will more than likely explain the hidden details. Let's not forget that this is a fictional story and that if Obito really did control Kage's and demon's at a young age, that's not too farfetched for a manga about ninjas raging war in broad daylight. For all you guys know, Obito could be being controled by another Uchiha. Stop crying babies, you will get your formula milk next chapter, if not later.