Full screen coordinates

When trying to determine the coordiantes of Unity3d player in full screen mode it has reported (1024,768) althought my screen's resolution was (1440,900) , Does this mean that the coordinates of full screen mode is always (1024,768) ???

No, it is not always `1024x768`; you could set the screen's resolution higher using something like this simple javascript:

function Start () {
Screen.SetResolution(1440, 900, true);

This just sets the screen resolution to `1440x900` and turns on fullscreen.

For more on screen resolutions go here in the docs: