FlightTrack is not a newcomer to Android, but this particular version of the app is. FlightTrack 5 is a totally redesigned experience that's being released in time to celebrate the developer's fifth anniversary. You can join in on the festivities by taking advantage of the introductory sale price for FlightTrack 5.
This app is designed to help you survive the horror of air travel. FlightTrack 5 does pretty much what the name says – it tracks flights and offers real time alerts whenever anything changes.