Quote Originally Posted by Seto Fett
Anyone hate/like Kakashi's new Sharingan Eye, as he's developed the Mangekyou Eye now. Then there's Sasori's defeat, which some say took too long to finish...
Spoiler tags, kid. [*spoiler]insert spoilery info here[*/spoiler], without the *'s. Try not to ruin things for people watching the English dub.

Also, (SPOILER)it is not Mangekyou Sharingan; that is an innate trait of the Uchiha's, much like the normal Sharingan itself. Because Kakashi is not an Uchiha or carries their blood, he isn't able to use it as they do. Plus, he uses handseals to unlock it. To see what it is exactly, we'll have to wait for an explanation in the manga. And yeah, Sasori's fight too forever.