Android: Clearing App Preferences (via http://goo.gl/lN6EmT)

public void clearState() {
    Editor editor = m_prefs.edit();
    editor.remove(PREF_FIRSTRUN);
    editor.remove(PREF_DONE_REV);
    editor.remove(PREF_TODO_REV);
    editor.remove(PREF_NEED_TO_PUSH);
    editor.commit();
}