Theory about the "caretaker candidates." Maybe Smokey needs one to either come with him, or as Nuch said, be sacrificed in order for him to leave. Maybe if he leaves, the island somehow ceases to exist, it would explain his disdain for Jacob, perhaps the true caretaker has to allow him to leave, and Jacob didn't let him go.
I don't get why that chick on the beach, (Ilena, Alana? w/e), said Smokey is recruiting, that throws a wrench in the whole killing Sawyer thing if he's recruiting.
What's with the abundance of ash? If some was just created by Jacob burning, where did the other ash come from? Suggests that either Jacob has died before and burned and that's where it's from, or it's from previous caretakers being burned and just built up over time or something.
That little kid is weird, I can't help but keep going back in my head to wondering where all of the Egyptian hieroglyphics tie in to the whole story. Maybe they're lower gods that were cursed to walk the earth and trapped on the island to protect man? But this kind of shatters the possibility of multiple caretakers, if Jacob was some sort of a god.
I'm not sure what the little kid meant you can't kill "him." Maybe he meant Richard? Seems more like he meant Sawyer though.
Oh and I couldn't help but laugh my ass off when I heard Ben bitching about the coffee in the teacher's lounge.
More important than anything, it seems like Richard knows exactly what's going on. As if he either was warned about such things by Jacob, or he has experienced the chain of events before.
Also, you all need to watch this clip from The Soup:
http://www.youtube.com/watch?v=eRJvaQuCh5c