It is possible that she knows that Desmond is involved with Penelope Widmore - daughter of the head of the Widmore Corporation, and that she is at odds with her father about finding Desmond. The Hanso Foundation and Widmore Corporation won't reveal the location of the island to Penny, and yet Penny searches for it anyway. Penny has guys at a listening station looking for a signal, and Mikhail mentioned that he used to be stationed at a listening station. I think there is more going on behind the scenes with Widmore and Hanso and possibly Mr. Paik then we realize. Something along those lines, maybe. Did anyone notice that the knot that Juliet was tying at the end made a figure "8", and also maybe symbolized the tightening of the noose around someone's neck?

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