Breaking news! The KDevelop Team will release version 1.3 of its C/C++ IDE for UNIX within the next couple of weeks. The new release has a lot of new features regarding KDE 2 and Qt 2.2 development, particularly a project file generator which creates a project file out of your existing automake/autoconf project on the fly so you can start working with KDevelop on your former project within seconds. I´ve tried this last night with the kdebase module - and it worked!
Furthermore, the new version supports the new Qt Designer and Linguist (so you can create translations for your Qt 2.2 project just like for a KDE project type) and the KDE 2.0/Qt-2.2 templates are based on KDE´s /admin directory (so you can turn your Qt project into a KDE project with little change). Additionally, the KDE 2/Qt2.2 projects make use of the new API with XML, KAction and QAction stuff. Finally the new KDE 2.0 Development Book will be included (hopefully it´ll be released soon!), so KDevelop will be your first shot for KDE 2.0 Development.
Please note that KDevelop 1.3 will be shown together with KDE 2.0 at the Systems Expo in Munich, Germany from Nov. 7th to 10th and at the Comdex expo in Las Vegas from Nov. 13th to 17th. at the KDE booth - meet you there!