Keep your eyes open and take everything you see in the 'mainstream press' with a grain of salt. Jim Finkle, we now have our eyes on you. Unnecessary drama [PDF warning] arouses suspicion about ulterior motives.
Update: Here is another confirmation (this time from RMS), in case one was needed to show that Reuters was wrong. The previous confirmation came from Peter Brown of the FSF.
From what we can gather, the tram ticketing system does not use Windows; we never saw it crashing or rebooting (or showing some Windows logo) in decades, so we assume it runs some kind of Linux