Do I need to change all of my scripts to make it work for the iPhone? Or should it work anyways? These are the kind of scripts I am using:

function OnGUI () {

GUI.Box (Rect (350,200,190,150), "");

if (GUI.Button (Rect (360,210,170,30), "New Game")) {
    Application.LoadLevel (3);
}


if (GUI.Button (Rect (360,250,170,30), "Level Select")) {
    Application.LoadLevel (1);
}

if (GUI.Button (Rect (360,290,170,30), "Tutorial")) {
    Application.LoadLevel (2);
}

}

Does this work on iPhone? Thx