I read your flame/debate with Guillaume.
You are at least obviously wrong about one thing. You stated multiple time that Trolltech would prevent you from porting Qt to windows or MacOs X.
Qt is released under GPL so there is no way Trolltech can prevent you from doing anything with it. You can twist the code the way you want as long as you stay GPL. And in fact, Qt is being ported on windows and Trolltech is aware of it. See: kde-cygwin.sf.net
Right now, the project require cygwin and X11 server. But there are plans to port Qt to native win32. I remember a project one year ago where a Mac hacker said he had the GPL Qt running on MacOs X in one day, and was planning to port it on MacOs 9 since it was so easy. Seems like he did not do it.
So you could prefectely wrap Qt using libsig++ instead of their signal/slot system :-)
Another thing that many people seem to miss is that Qt is GPL but if Trolltech does not release a new version in two years, it becomes BSD-licensed (see the FreeQt foundation) so you can use it in any kind of commercial close-source product . You get the same protection against 'what happens if the company goes bankrupt' as for any open source project.
A final point: I agree that you have no true development list for Qt as for other project. But their direct support is very good and they even provided it to me although I had no license (at that time). Some of my feature-requests have been taken into account and many of KDE's requests/problems are dealt with by Qt.
So the development is not as open as you could with but it does not prevent you from benefitting of the result. In fact, I would be ready to trade some openness of many open source projects for more stability/quality (with the source still fully available and modifiable of course).