I am pretty impressed how simple it is to integrate Qt with Visual Studio 2010. After installing Qt SDK and Visual Studio Add-in the only necessary manual step is to setup Qt Version by going to a newly created VS menu:
Qt / Qt Options / Qt Versions / Add
and pointing the version to:
c:\<QtSDK>\Desktop\Qt\4.8.0\msvc2010\
After that everything works seamlessly. Just create a sample project using the Qt Wizard and hit Build. It just works, that's a miracle! The integrations feel very native and mature. Good job Nokia!