[kelnos]

That's not what this article is about. You still only have one mouse cursor in that case, but two things (the touchscreen and touchpad) drive it.

This is about actually having multiple, independent mouse cursors on the screen at once, with different input devices controlling different cursors.

[minitech]

Sometimes that's true, but sometimes (imo the superior approach) the touchscreen is independent from the cursor. I think touchscreen Chromebooks are like that, for example.

[bee_rider]

Oh, that seems like it would be quite nice, actually. It is vaguely annoying when my touchscreen moves my mouse cursor.

[rcxdude]

It depends on the DE and the application to some extent. The touch events are seperate to mouse events and the mouse cursor moving, but AFAIK usually there is an emulation layer for compatibility with applications that don't support touch events which also moves the cursor, and this behaviour can change depending on the application (either it sets some flag or responds to the touch events in some way). Digitizer pens are the same way.