I was also getting idea of an abandoned experiment. Like there is some mysterious resupply procedure, maybe in the same procedure they pick up the tubes somehow.
The orientation video in Pearl said that 'subjects in EACH HATCH are to believe only their task is important' or something close to that.. So I guess, Swan guys believed, they are doing real work, by pushing button and those Pearl people believed, they were doing real work, by sending those notebooks. I guess people in other hatches were in similar positions (note the button in Hydra), doing some routine work. Something like Sawyer did in his cage.
The button was real? But was it? Maybe nothing horrible happend after all? Henry 'Ben' Gale messed with Locke, and in season 2 finale he didn't seemed very concerned about that 'WHITE NOISY THING'. No one cared about that damn button and no one cared for friggin notebooks. The world is not destroyed yet and the island is still in one piece. Oh, maybe that'll be a long-term effect, like island will slowly go underwater in season3 ?
