Nokia's been beating the Qt warpath for years after purchasing the developer framework from Trolltech back in January of 2008. In fact, Nokia just made the switch to Qt exclusively back in October in a sign of its unrelenting support for the unified development environment. That, like all previous Nokia strategies, is in for a big change today. While Qt will continue on as the development framework for Symbian and MeeGo, Microsoft will provide its free Windows Phone Developer Tools (Visual Studio 2010, Expression, Silverlight and the XNA Framework) to developers interested in developing for Nokia Windows Phones (get used to that phrase) while provid