I still think henry gale is an other. Also, when they (sayid/charlie/ana lucia) walked into the clearing looking for the balloon, a trap was the first thing i thought of. Next week's episode shoudl be good tho. This week's was ok, but the show is starting to drag. I think its a combination of a few sub-par episodes combined with all the time off.
Also, the south park episode right afetr LOST was hilarious, so that may have overshadowed it a bit.