This app shows current, realtime data about when to expect tram and bus in Kraków (Cracow, Poland). It uses your GPS position to show only relevant data (from nearest stops). It is not scheduled information, but real data (with all delays included).
You can sort data by line, direction or stop.

You can also see history of tram lines (since 1882), and current reroutes.

As app is converted to Platform Uno, same app will be available for Android (with some features missing, though).