For a past couple of weeks I have been working on porting the facebook connect for iphone to Qt. Since Qt is going to make it big in next few years thanks to both Symbian 4 and Maemo 6 using it as their UI library, it makes a lot of sense to have a facebook connect library for Qt, but since Facebook cares mostly about the platforms popular in the USA, which are iPhone and may be Android ( though there is no facebook connect for Android ) I took it upon myself to port this to Qt and learn objective-c and sharpen my Qt skills along the way.
the repository is hosted at http://gitorious.org/qfacebookconnect
Currently the project is in copy / paste / compile mode. But once I have all the files compiling I will optimize it for Qt. Please have a look and join if you are interested !