Penny (falling) from heaven.
At least, that's what we were led to believe would happen for the hour. Instead we get another surprise (like last week's bitch moment at the end.)
If you haven't seen this episode yet, let this sentence serve as a spoiler warning.
Considering the island, if Desmond didn't save Charlie's life, would Penny have been on the island? It's that island box thing. That'll probably tear at Desmond, since Penny is looking for him. He knows that.
(And I missed what that woman said at the end.)