Jesus did not condemn the woman. 
Does that mean he condoned the sin? Either that, or she did not sin to begin with.
Does that mean he ignored the sin? Either that, or she did not sin to begin with.
Does that mean God will not punish sin? Either that, or she did not sin to begin with.

I am not really sure how to read the story, No one in the story condemned the woman, so I am not sure I should now. Perhaps it means she will not be punished, but her guilt remains. It just seems difficult to see her as an example of a guilty person.