Digia and the Qt Project has been exploding with great new work.
Qt 5.1 is adding initial support for Qt Quick Controls formerly "Desktop Components". These are packaged Qt Quick controls such as sliders and tables with skins for each of the different platforms.
The Qt Project has just recently started shipping the Qt Installer Framework which is a cross-platform installer framework (that is used by the Qt installers). After managing multiple installers on different platforms for my own open source work, I'm really looking forward to digging into this.
Another huge project is the new Qt Build System or qbs. This is a replacement for QMake and I'm really excited to see how it shapes up against CMake.
With the recent advancements in the C++ standard and Qt, it is a very exciting time to be a C++ developer.