Returns the text displayed by the input field of the keyboard. This
value can be accessed at any moment, even if user has not yet finished input process.
var inputText : String = "text";
private var keyboard : TouchScreenKeyboard;
// Updates button's text while user is typing
function OnGUI() {
if (GUI.Button(Rect(0, 10, 200, 32), inputText))
keyboard = TouchScreenKeyboard.Open(inputText);
if (keyboard)
inputText = keyboard.text;
}