KDE is one of the 2 major providers of GUIs and applications for Linux systems (some KDE applications are also now available for Windows too! Ed.).
It’s currently holding the KDE Akademy 2013, a free, non-commercial event organised by the KDE community, in Bilbao in the Basque Country of Northern Spain from 13th to 19th July.
The local public transport company has also picked up on this event and is advertising it on its ticket machines; and in 3 languages too!.
Would London Underground or the UK’s train operating companies do likewise?
I’ve written before of my dislike of advertising (posts passim), but advertising for community-based projects – even if those communities are scattered throughout the world – is something for which I’ll make an exception.