Pentawards is the first and (apparently) only worldwide competition exclusively devoted to packaging design in all its forms. It is open to everybody in all countries who are associated with the creation and marketing of packaging. The winners receive bronze, silver, gold, platinum or diamond Pentawards according to the creative quality of their work.
2011 entry is open up to the 20th of May. You can read more at: http://www.pentawards.org/