The Mississauga MiWay App will list all busses at a stop including when they are arriving and where they are going. Data is in real-time from Mississaugas Open Data GTFS (Transit Feed System).
You can also use it to find nearby bus stops.
You can get details (bus speed, etc.) on the bus by clicking on it.
You can also search your stop number in the home screen or using the Search button.
It is a very simple app that just works!