The Earth 2 sequences are starting to show a little relevance (namely, the little bits that seem to point to a bleed through from Earth 1 [ex: Jack's confusion at the appendix scar]) but overall I still feel like I could fast forward through them, watch an ep in 20 minutes and feel like I'm getting the important stuff on the show.
I also got the impression that Hurley pretty much told us all we're going to find out about the skeletons in the cave last night, namely, that they were survivors who got stuck there during one of the time jumps. We might not ever find out specifically who "Adam and Eve" were were but my money's on Bernard and Rose.
