The quit game action does not work on Android.
It makes the screen go black, but you you still have to press the home button on the device to get back to the android home screen.
Restarting the Game will cause the black screen to re-appear.
Re-selecting the still-running instance of the Game causes a crash ("Unfortunately, VIsionaire Player has stopped working) and then it will start a new game.
Note: I've also tried using os.exit() and native.requestExit() with no success.