I think you are overlooking the Web Runtime here, which is just as first class citizen.

How many Javascript-friendly developers you find for each developer ready to go through Qt+DUI/Orbit? How many simple mobile apps you will find for every complex app requiring the native API? If the Symbian/Maemo cross-platform story is attractive then the Symbian/Maemo/iPhone/Android/Palm/Blackberry/Bada "fairly compatible" story is even more interesting.

Qt / QML / QGraphicsView might be more than enough for a segment of native developers. We can discuss this more in details when we see plain Qt running in a Harmattan SDK.

The loud voices in this thread are coming from you innovative developers, willing to squeeze the cutting edge. Are you representative for the majority of developers now and by the time Maemo 6 is released? Well, I doubt so.

I expect DUI to play an important role in Maemo 6, setting high standards for the UI Framework and providing the promised iconic user experience. Our native applications will sport it and we will invite the most demanding developers to use it. But the Web Runtime and Qt will be just as important.

Then time will tell, and more work will be done based on concrete interests and needs. How much and how fast will Qt integrate from DUI/Orbit in future releases? How much interest will DUI raise in platforms other than Maemo? What real stories will there be about cross-platform development?

We don't know the answers but we know that things move fast.