Today two new countries were born: Curacao and Sint Maarten. See the news for explanation: http://channel6newsonline.com/2010/10/dutch-caribbean-islands-curacao-and-sint-maarten-become-independent-countries/
At midnight today the Netherlands Antilles dissolved. Now there are those 2 new countries (part of the Kingdom of the Netherlands) and 3 new Dutch municipalities (Bonaire, Sint Eustatius and Saba). There is also Aruba, and Aruba has a special status as an independent countrie since January 1, 1986.
Here is the chart of Curacao and Sint Maarten.