Maybe its some type of thing where when they take corporeal form of someone, there is a mixture of personality and what not. I mean, there has to be some type of memory transfer or everyone would spot the fake pretty quickly. But maybe not the emotional transfer, as Sawyer spotted the unfrightened FLocke right off the bat (while being a bit tipsy no less).

So he did say "scared", not "scary" right? A friend is arguing with me

Now I thought that this was actually true. Jacob is to find a replacement...who will be on the Island for a while "protecting" it. But I don't think that the Jacob role is so much protecting the Island from outside whatever (although in part it is), but more as protecting the Island (and thus the world) from the Smoke Monster-FLocke-Man in Black.

It was the whole thing at the cave...with the black & white stones sitting on the scale which was perfectly balanced..that I found interesting. Well FLocke picked up the white stone and tossed it out into the ocean. I think that this was a symbol (an inside joke?) about Jacob & FLocke's continuous struggle against each other. This is nicely forshaddowed by (real) Locke's explanation of the game baggamon (sp?) to Walt in the first few episodes. Locke describes the game as being "one is light, one is dark". When FLocke tricked Ben into killing Jacob, he might have won...however that blond kid that was covered in blood (the first time we saw him) may be indication that the game is not over. He said something (the second time we saw him) about violating the rules or breaking the rules or some such. I'm thinking that FLocke's victory was still cheating...and if you cheat to win, you haven't really won.