Adafruit Eagle library, an Arduino package!http://www.adafruit.com/blog/2010/02/05/b00m-adafruit-eagle-library-an-arduino-package/ (http://www.adafruit.com/blog/2010/02/05/b00m-adafruit-eagle-library-an-arduino-package/)
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We just added to the Adafruit Eagle library, an Arduino package! now you can make shields and custom projects with ease"
(http://www.adafruit.com/adablog/wp-content/uploads/2010/02/ardeagle1.jpg)