I am just about to catch my flight to Munich to attend Qt Developer Days 2011 where I will be giving a talk on Qt Quick Best Practices. I have been working with QML exclusively for over a year now and this talk is in essence a summary of all the things I have learnt about it. This will also be my 6th developer days as attendee and third time as a speaker.
Am really looking forward to interesting conversations about Qt5, Qt Quick and the Qt project 
I followed your talk in Munich with much interest, thanks! I am looking forward to finding your slides and the video stream online.
@Sven: http://developer.qt.nokia.com/videos/watch/qt-quick-best-practices-and-design-patterns