FlightAware is a free app for the BlackBerry PlayBook tablet that can find flights and display all sorts of publicly available information. Find flights overhead using GPS or search by flight number, departure or destination city.
Track all sorts of data about the flight including flight status, gate details, changes, delays and cancellations. Flight aware goes beyond commercial flights allowing you to track charter, private, and GA aircraft too. Search for flights by departure or destination city, airline name, flight number or aircraft tail number (N-number).
Other features include full-screen flight tracker maps with NEXRAD weather, and mobile push notifications so you’re always up to date.