Comment 14 for bug 355340

Golam, on Tablet PC the right click button is obtained by pressing the pen nib with the side button pressed, not with the eraser (first because some TabletPC don't have an eraser, but more important because having to return the pen each time you need to open a contextual menu would be completely over the top). So if something has to be corrected, it's (2) in your summary.
(Wacoms tablets only differ in that the right click is by default obtained with just the side button, no need to press the nib at the same time)