Yep I saw it, here's what I think.
My theory about a Utopian Society on the Island run by the others seems correct. Guess something good did come out of watching "The Village".
My guess that the man Jack's wife was cheating on was his dad seems false.
I think the others are gonna fuck around with Kate and Sawyer and will try to make Jack join and he will stay with them for a bit.
The guy in the cage across from Sawyer's, I think was an other, but he was not put there to setup Sawyer, I think he's a product of what this "utopian" society does to punish their members(when tom made him apologize to Sawyer gave it away).