Yeah, I thought the episode was "meh"
Sun loses her voice only to get it back when she meets Jin? Touching, but did it really have a point? I'm just glad that they didn't do anything stupid with it, like, someone is sneaking up behind someone to kill them and she can't warn them because she can only speak Korean... the whole time they ran up to each other I was like, "are you sure they turned off the fences?????"
Desmond asking Sayid, "what will your woman say when she hears about this?" No matter how true it may be, it's been done hundreds of times before it seems, and they could have come up with something better.... on that note, I thought Sayid was going to shoot and all the bullets would go crazy from the electromagnetism.
Also, I was thinking that Jack might be paralyzed from that explosion. Would finally put him into the role of Locke.
This episode wasnt as good at the last, but I'm glad they finally confirmed that the MIB was posing as Jack's dad on the island.
Also, has anybody else noticed that the vegetation seem's to have changed from lush tropical vegetation to dead looking forrests since Jacob died or is that just me?
Possibly, but I always thought the vegetation on that side of the island was a little barren. But I haven't seen the old episodes enough times to remember well

It seems that we are getting small hints/answers as the episodes go (first we find out about the whispers, now about Jack's father). Good stuff to know, for sure, but nothing real ground breaking, and nothing that people haven't been theorizing for, I dunno...... years. I'd like to see something new, I'd like to see something with a twist that can't by found in the ramblings of a 15 year old on an internet forum (not pointing to anyone here, I was about that age when the show started and if I turn out to be right on some big things............ yeah, disappoint)
Also, love the way everyone is coming together in the alternate universe.
And why aren't any of the characters asking, "why do we always have to show up TOGETHER???? We have to come back together, now we have to leave together....... Why can't you just get on a plane and fly away???? It ain't that hard....." That would be my number one question