The new Nokia Developer website is one of the first Nokia properties to use the new official Nokia Pure font; it also make uses of some of the Nokia Pure Icons (also seen in the Symbian Anna software).
The new site can be at www.developer.nokia.com, the older links will continue to work and will automatically forward to the new site.
Here's what Nokia Developer has to say about the new website:
While this website might look a bit different now, we think you will agree we have made it simpler to understand. Whether you plan to develop and deploy mobile apps using Qt, Web or Java – or if you plan to begin crafting apps for Nokia with Windows Phone – you will notice that it is easy for you to reach any of the mobile development-related resources that you need to do your work quickly and efficiently. As you will see, this is part of an overall movement by Nokia to offer our global developer community a single point of service to design, develop and distribute mobile apps and content to consumers using the latest Nokia phones worldwide.