Qt 5 Beta release is available since August 30, 2012. Final release is expected by November 2012. It is, of course, an important event for C++ developers and we can get much more details here:
Being introduced in Qt 4.7 (September 2010) QML and Qt Quick will play major role in Qt 5 release. Qt Quick gives us a declarative way of building user interfaces and it is intended to be used widely for mobile devices. Declarative scripting language is called QML.
A good thing is that they say it will be easy to make Qt 4 applications to work on Qt 5, no special efforts will be required for that.
Another good thing is that more features of current C++ standard (C++ 11) will be supported in Qt 5. You can read about some of the features here:
A little bit earlier (August 9, 2012) Digia signed an agreement with Nokia that it is Digia who is responsible for Qt activities now:
It is especially interesting that they are planning make Qt available on Android, iOS and Windows 8 platforms very soon.