Lost Update (Oceanic 6)

So, we've met all the Oceanic 6. Jack, Kate, Hurley, Sayed, Aaron, and Sun. I still can't help but ask, is Jin really dead? If I'm not mistaken the date on his tombstone was the same date as the crash? Coincidence? Why that date? He obviously lived beyond that, so what is someone trying to hide by using that date? Why didn't he make it off?

I wasn't necessarily surprised to see Michael on the boat. He's validated that he is Ben's spy. But, where is Walt? Still with Michael's mother? In what form did he take when he appeared before Locke? Was that the Island manifesting a vision that Locke would recognize?

What about Regina commiting suicide? Was it because of the proximity to the Island? Was it because of the transmissions coming and going between the boat and the Island (she was the one taking all the satellite phone calls)?

The boat's captain still can't be trusted. The black box from Oceanic Flight 815 seemed a bit too convenient. Of course both sides has since stated that the other side (ie Widmoor or Ben Linus) have created the massive cover up the like of which would have included having all the spare bodies, a full plane, media, etc. Which side to believe?

Did Sayed really do the right thing by turning Michael in as the traitor? I guess we'll have to wait until 4/24 to find out. I can't believe we're taking another break, even a small one of only 4 weeks.