Nice to see Michael back finally, to get the tension up again. Sooo...since the nature of the show leaves us to theorize at will, anyone think there's a possiblity that Michael might be helping the Others out, in soul-selling deal to get Walt back? In a way, he's been even more obsessed with getting his son back than Locke has been about figuring out the island. He was stubborn and extremely headstrong to begin with, and then he snapped, took guns and split. Then he shows up right where Jack decides to cross the line, which is also happens to be where they lost Michael's trail when they went to look for him. Yes, he may have been exhausted from exposure while out there searching on his own, but maybe he was also being kept prisoner and released once Jack was on the line, which would also explain his condition. I know coincidence and synchronicity run rampant on the island, but it does make you think...
Also remember beardless Zeke and Ethan's conversation in Maternity Leave, about not having finished the list...could it be they do want certain people taken to their side? In the previews for the next episode we see that Jack will be going with him--could they now want Jack for his medical skills, to replace Ethan? Or am I just talking out of my ass? One thing for sure--I can't wait for May!