The scribble pad is a simple MSPaint style drawing application. It allows you to doodle on your DS and gives you a small range of tools to make your pictures look delicious. Currently, it can save to .bmp and .png (configurable under the Configuration page). Saved drawings can be found in the scribble directory. Simply use the &up; and &down; buttons or the stylus and the scroll bar to navigate the list.
To delete a scribble, simply press the &x; button.