I picked up my parents from the airport last month. It showed me the time of arrival updated in realtime while I was going to the airport. At the airport, once the flight had landed, it started showing me the checked baggage collection belt number.

At Google I/O last year they stated that the Google Now cards which show flight arrival times would figure out when a flight lands and how far you are away from the airport (including traffic) to predict the best time to leave.