I just went back from Kraków where I've given a talk at AGH University of Science and Technology (Akademia Górniczo-Hutnicza), at SKN Shader scientific group. The title of my presentation was "Pułapki programowania obiektowego" ("Pitfalls of Object-Oriented Programming"). Here are the slides: [PDF], [PPTX]. The presentation is new, although you could already see most of the slides at IGK conference or at Polygon scientific group.
By the way, I want to thank Koshmaar, TeMPOraL and all members of the SKN Shader for the wonderful time in Kraków. You can see several photos that I took there in my gallery on Picasaweb and a panorama photo on Panogio.