Bah, this episode was a complete cocktease. More so than usual, I mean. Sayid traded what-his-name for who's-her-face to Locke, and in the future he's Ben's personal hitman. And now we now the barrier around the island causes a 31 minute delay. What does any of this mean in the grand scheme of Lost mythology? Who can say.
My favorite moment of the episode:
Hurley: "Oh great, the boat sent us another Sawyer."