svoid swingOpenPhoneFile(S path) {
  swingOpenPhoneFile(gateway(), path);
}

svoid swingOpenPhoneFile(S ip , S path) {
  byte[] data = readFileFromPhone(ip, path);
  File f = prepareCacheProgramFile(md5(data) + ".data");
  saveBinaryFile(f, data);
  if (isPNG(data))
    showImage(path, loadBufferedImage(f));
  else
    showText(path, fromUtf8(data));
}