Quote Originally Posted by wysota
Yes, it's mentioned in the announcement.
Not really : the mail I received mention :
- Web Start functionality, enabling installation and launch of Qt Jambi from within any web browser.
This sentence deals with embedding the installation and the launch, not the excution. That's why I decided to add a concrete example in my post, in order to precisely explain my needs: i want something whose display is embedded in the web page, not in a separate window.

Look at the Qt jambi web start demo, you'll be able to launch an application that displays itself in a completely separate window.
Moreover, once launched and displayed, close your web browser : the application is still running. That's not the behavior of an applet.

Does anybody has more information ?