Always listen to experts. The'll tell you
what can't be done and why. Then do it.
(Robert A. Heinlein)
In recent years I'm also interested in web usability (User eXperience) and the development of native mobile applications for Android, iOS, Windows Phone and Firefox OS. I love games of all kinds, Linux and Open Source - a few of my contributions to the world of open source can be found on my GitHub.
My favourite activities at spare time: reading, time management, travel, cycling and skiing, theater, developer meetings.