^ I saw Ben's reappearance after Locke's revival coming since Locke was killed simply because it's very LOSTish drama. I don't buy that Ben will manipulate the new crew against Locke simply because the new crew couldn't have come on the island with the 0ceanic 6 and Caeser and Ilana and I don't think they'll play an important role in the future plot considering the spoilers.
I was disappointed by the lack of substance in the convo with Walt, but the dream revelation was interesting. I wonder if his dreams allow him to actually travel to the island considering his appearances to Shannon and Locke when he wasn't supposed to be there. Also, Walt seems to know more than he's letting on.
Also, I suspect that Ilana is related to Ana Lucia somehow.
Btw, appparently the LOST production team has been doing some episode swapping for presentation. This ep was supposed to air last week, 316 was supposed to air this week, and Lafleur next week.