Fun analysis on this last episode guys, keep it coming.
I've got a question, though... my memory is hazy, but weren't we led to believe that Sun was planning to meet her English teacher in Sydney, but decided at the last moment to stay with Jin? If I remember right, it seemed pretty clear that the teacher (or his driver or something) was all ready to meet her, and there was no indication that he had died. I liked the flashback of this past epsiode, but it seems like a stretch for it to jive with the previous flashbacks.
Sun & Jin have long had been the subjects of my favorite flashbacks, so I'm just trying to get their stories straight.