Something about "Locke" told me he wasn't the real deal and I immediately thought he was the other adversary to Jacob.
So are we going to go through season 6 with "Not Locke" or will "Not Locke" revive the real Locke?
Seems like it, with the promo at the end "Destiny" and an eye opening up
It's like when Jacob woke Locke up after falling from a building.
Jacob probably touched Locke when the plane exploded so that he can walk.