Jund. jund? jund! 35 % of decks were jund decks. Unbelieavable card advantage made choise of many players from many countries. But there were also another type of decks. So what we have - metagame breakdown:
As expected jund, boros and eldrazi green were the most popular decks at Worlds 2009.
Top 8 constist of 3 junds, 2 naya decks, bant, boros and monowhite tokens. Top 8 decks you can find at Wizards of the Coast offical coverage page.
Top 8 player's profiles - http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/worlds09/top8playerprofiles.
Top standard decks: http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/worlds09/topstandarddecks. Here you can find Vampires 6-0. Many Jund variants, some rogue decks from great players - Joel Calafell with UW "Fog" deck and Conly Woods with 8 ultimatum GBR deck.
And, of course, Congratulation to André Coimbra, who beat Jund in Finals with NayaAntiJund. Congratulations!
You can download quarterfinals, team finals and world final video! Semifinals will be soon.
Top Extended decks - http://www.wizards.com/Magic/Magazine/Article.aspx?x=mtg/daily/eventcoverage/worlds09/topextended.
Enjoy! And play magic ;)