I need tech help. I saw this done. Really cool If you own Apple products or similar products maybe you can help. The reason this would be an interesting thing to do is that it could help you see if trouble is coming. If you and yours are hiding in a room and the bad guys head down the hall, you could use your phone or device as a camera to track their movements. I am interested if you can use a phone and tablet or Ipod and phone or tablet? Or would it have to be just a phone and watch.