Lost is still running. The second series is about to finish in the UK, and I gather the 3rd is about to start in the US. They plan to stretch it over 6 or 7 series (or more likely cancel it without resolving anything). Currently (UK pace) they are still on the island and haven't figured out much of what is going on. They haven't even circumnavigated the place, so there could indeed be Gilligan, or a huge hotel, on the other side. They have found buildings apparently used for research, and have received an air-drop of food supplies apparently intended for the researchers. The researchers are not friendly and occasionally kidnap or kill them.

It's not a real survival scenario. One of them had a half-hearted attempt to mark out a large signal-sign on the ground, but gave up a few hours later. Ironically this was just before the supplies arrived, so had it been done right it might have been seen by the plane and led to their rescue. If it was a plane - nobody keeps watch, so the supplies might have been delivered by submarine for all they know. They are utterly incurious about their surroundings. Many of them don't seem to want to be rescued.

The "monster" is apparently some kind of nanotechnology security system. It looks like black smoke, but is still mostly mysterious. The French woman is apparently a survivor of a previous crash (a boat, that time). She turns up now and then but they don't talk to her much.

I'm still watching it. For all its flaws it's still quite fun.