Qt Version 4.8 Released
20.05.12
The latest version of Qt, the cross-platform application and UI framework is now available and there's a new version of the Visual Studio tools, the final one from Nokia.
The Qt C++ UI library is well known but its status has changed greatly since Nokia dropped it as the main development environment in favor of Windows Phone 7 and handed over the commercial aspects to Digia PLC. Qt is still being developed by Qt Development Frameworks, which is a Nokia spin-off although the company operates separately and targets other devices as well as those from Nokia.

The stated aim is still to let developers build applications and touch-enabled user interfaces once and then deploy across multiple mobile, desktop, consumer electronic and embedded platforms without having to re-write any code. This doesn't really seem to be in Nokia's commercial interests.
Although Nokia promises to stand behind Qt, there are bound to be doubts about its long term future. A version 5 is planned for next year (2012) but for now version 4.8 has just been released.
Source: iProgrammer