Lars Knoll has announced the Qt 5 Alpha release on the Nokia Qt Labs blog. This alpha release is coming slightly late, but it's here nevertheless with some massive changes.
Qt 5.0 has been in-development for nearly one year and during this time has been developed completely in the open thanks to the formation of the Qt Project. For those not up to speed on Qt 5.0, internally all Qt ports are now based upon their Qt Platform Abstraction layer to make supporting new devices/platforms easier (such as Wayland and Android and a troubling Apple iOS port), the graphixs stack has been overhauled for greater performance and new features (taking heavy advantage of Qt Quick and OpenGL ES 2.0), a modular repository structure, and all QWidget functionality has been separated into its own library.
C++11 support in Qt Core, Qt GUI enhancements, Qt Widgets have been ported to the QPA architecture, Qt Quick is in much better shape over Qt4, Qt 3D is available for integrating 3D content, Qt WebKit has been updated, and much more has went on for the past months of this open-source tool-kit's development. There's also input / multi-touch improvements for Qt 5.0.
Qt 5.0 will be officially released later this year after it was first announced at UDS Budapest. Qt 5.0 Alpha is available as source-only and is available from Qt-Project.org.