ok so, i knew this was coming, sort of. Mittelos is an anagram for "lost time" and if you play the brainwashing scene backwards from last weeks epi, there is a woman repeating "Only fools are enslaved by time and space."
LOST - Be Kind, Rewind
now to this week. I think it obviously showed that button and the computer are more important then we think. I think desmond has a much larger part to play here, especialy if pushing the button is the "one great thing he will ever do." Also, that was like a oracle/matrix moment with that lady. And she was creeepy.
And, wouldn't charlie have remembered desmond? Interesting...