Our QT UI is 3 years old and was created as proof of concept for our generic UI. It's still 0.7 beta an we never had ideas for a real 1.0. Now we know that JVx' technology independent UIs work because we have different solutions with GXT and vaadin, mobile and our headless UI implementation.
We don't belive in QT Jambi as GUI toolkit and think the future of Java GUI toolkits is reserved for JavaFX or a completely new toolkit. Because of this fact, we discontinue our QT UI implementation and we'll clean our repository.