Hello all, So I know that you can buy an adapter to hook up an external monitor to the iPad with VGA. I have also heard that only certain apps work with this and it is not a mirroring of displays. Here are my needs (what iNeed this thing to display on the external monitor) 1. PDF files 2. mp4 movies 3. photos Any insight on how this works, what apps do it, etc. would be VERY appreciated!