When I saw the existing Arduino boards, I felt there is still a freedom missing. The existing Arduino boards are designed using a proprietary CAD tool. But GNUduino is free from those. It is designed using a complete free Schematic and PCB CAD tool named gEDA. This is my first Open Hardware project.
I would like to say special thanks to Pramode Sir for suggesting this name for the board.
You can download the schematic and PCB layout files from the below link
Update: Cooking GNUduino