I still think the different versions of scenes thing is no deeper than they want to reveal different things to us slowly, much the same way they did in the first season. Sun remembers her history one way, Jin sees it another, and when we saw Jin's flashbacks they involved the same scenes told differently. No big deal.
So let's see where we're at this week.
Kate has become a terrible liar. They did this to her a couple of times before in the last season or so, where she was supposed to be lying and was really obvious. I was as disappointed then as I am now. Remember in the first season when she was the kind of person who could dissolve her identity into new situations without a hitch? Now she can't even keep a basic secret?
Miles' flashbacks were awesome, especially pierced skunk miles.
I hope it doesn't go this way, but I keep envisioning the doctor getting wind of the Hostiles coming to kill them and using all his pull to send his beloved wife and only son off the island, bidding her to keep Miles away from the island at all costs, even saying that he doesn't love them.