static void androidSetBootProgram(S serviceProgID) {
  O service = androidGetPermanentService();
  if (service == null) { print("woot no service?"); ret; }

  SharedPreferences prefs = cast call(service, "getSharedPreferences");
  SharedPreferences.Editor editor = prefs.edit();
  editor.putString("serviceprogid", "" + parseSnippetID(serviceProgID));
  editor.commit();

  print("Set boot program to " + serviceProgID + "!");
}

Began life as a copy of #1002656