Four rubber studs at the bottom of the pad provided a firm grip on the table. The E-Pad also has some useful functions. It is easy and intuitive to hold, and most importantly, weighs like a normal pen. In terms of precision and accuracy, the tracking of the DuoPen is good. There is a reliable feel to it.
Relative mode means the movement is exactly like that of a mouse.
You can lift up the stylus, reposition it, and the cursor carry on moving from the previous position, ie. relative movement. Absolute mode is a different concept. Simply imagine the E-Pad as your monitor. The four corners of the pad correspond to the 4 corners of your monitor. Where you place the stylus tip on the E-Pad will correspond exactly to the cursor position on your monitor.