ok, this may be nitpicking, but just to be clear...Naomi's sat phone is NOT an Apple iPhone...it may have a touch-screen interface that looks similar to the iPhone's interface, but it is way bigger than the iPhone, and would be based on different underlying technology (satellite phones are not cell phones)

As for the time theories, there's certainly something going on that is related to time not being what we think it is...the producers have pretty much told us in the podcasts that there is something weird with time on this show. As to what it is, maybe the island is somehow outside of our reality...any fans of The Dark Tower will get where I'm going with this...think of the island as the Tower, which is kind of like a nexus of realities, and it is outside of normal time and space. I know, getting way out there...but the more theories, the better, right?