After Trolltech dropping the ball with the community back in the old days of Opie, I pretty much gave up on Qt (and C++) apart from accepting some contract work, so my C++/Qt skills would not get too rusty. Since my nightmares with getting something fluid out of Gtk+ (back in the Openmoko days), I did not have the chance to do much UI work -- the freesmartphone.org middleware kept me busy enough.
I have been watching Qt progressing though, and ever since they introduced Qt Kinetic and QML it became very interesting for me again. QML looks like EFL's Edje been thought through -- don't get me wrong, Edje was groundbreaking (as most of Rasterman's work) when it made its debut, however in my opinion it got stuck in the middle and never lived up to what I was expecting from it.
Once QML ships with Qt -- hopefully in the next minor or at least major version of Qt, I will get back on doing some FOSS work on application level to complete creating a smart phone stack. That's going to be fun!