I would just like to be the first to officially say....
HOLY FREAKING TWIST ENDING!!!!!!!
I was total not expecting that. This season has been something of a let down, but that ending made up for it big time. That is what LOST is all about.
Now then, who was in the coffin? My money is on Ben. It was the bad part of town, so it was someone without money, and someone Kate didn't like. Hmm, couls have been Locke... he was poor before teh crash. Who was the "he" Kate refered to, Husband? Sawyer? Jack told the other doctor to call his dad, is that possible? So many juicy questions. If they switch to this type of flashback for the rest of the show. It's going to be get so good.