Exactly. Ever used Apple AirPlay? Sure it works but there is a very noticeable delay to everything on the remote screen and that is with a higher speed wireless connection that what Bluetooth can possibly do. Apple has it working for CarPlay but they will not let anyone show it off yet so it must not be quite ready still at this point. I personally prefer the good old reliable cable connection over the ever buggy wireless standards. I say this as a person employed in the IT industry too.Remoting a display with real time responsiveness to touch screen and user action over wireless is not a trivial software/communications problem. The wireless connection is the easy part. Pushing all the data necessary to paint a screen and doing it fast enough and with latency low enough to be usable for interactive use is a whole other problem.