I thought it was him as soon as I saw the boat. I even said so in the rate this episode thread. He showed up to the island in a sail boat and, he wanted to get as far from the hatch as he could. I don't think he would have gotten to far with the tides going the wrong way. I've also heard he's going to be seen again during the last episode of the season.

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Hope is a very dangerous thing to lose. - Sayid

I do what my Rice Krispies tell me to. - Anonymous