I don't know if this has been brought up but has anyone flown with the new ACARS system? It does your out notice on INS movement, not door or light. I was also told by the Capt of the airplane i was JS on that if you are waiting for a gate it puts in an in number when you stop, then resets for the movement to park and then send another in message potentially screwing you out of the wait time for the gate. Not 100% sure on what exact number are going in, but this is worrisome.