Awesome episode, holy shit.
He better not be dead, he's one of the most interesting characters on the show. But supposedly there will be 4 more deaths by the end of the season, so I guess this could be one of them. I think it would have been shown to be more definite if he was dead, though. Unless he dies by the finale. But I'd like to believe he's far too important a character to kill off.
So if that's what happened to the Dharma people...what was with Desmond and Kelvin in the hatch? Why was Kelvin there in the first place if Dharma was gone? Why the hell did the food drop if the purge had already happened? Maybe Dharma attempted to re-establish themselves after?
AHHHHHHHHHHHH mindfuck. Love this show!