QML and serious projects

I have some doubts about QML capabilities.
Applications existing in 'Qt examples and demos' (QML category) have a "hello-world" level of complexity. We tried to use QML in our applications but discover only its restrictions and limitations.
Does anyone know more complicated open source applications used QML?

I don't remember its name but there is a complex media center system written in C++/QML available. I know Girish Ramakrishnan was involved in the project, maybe you can look up the project by his name.

Ah... I think I found it myself -- http://code.google.com/p/qtmediahub/