A screw terminal shield for the Arduino / Freeduino / Seeeduino board is already available: http://www.nkcelectronics.com/freeduino-terminal-block-shield-arduino-compatible.html
A screw terminal shield for the Arduino / Freeduino / Seeeduino board is already available: http://www.nkcelectronics.com/freeduino-terminal-block-shield-arduino-compatible.html