Marina Silva of the Green Party, who was polling around 10% all through the election season (give or take), has taken chunks out of Dilma Rousseff's vote and stopped her from becoming President of Brazil until October 11th. Dilma will still win then (she runs off against Serra) but this result goes down as a minor shock if confirmed by the total count. Data from here.
Brazil goes green. Can't say it's a bad thing, either.