That’s right, there is a Bing Maps WPF control available now. This was just recently announced . This control is currently in beta but already a lot of buzz is floating around about it. The current control is pretty basic in terms of functionality but this was by design. There is no default pushpin style as almost always people want to use a custom one anyways. Instead development has been focused on usability. This control has been developed to work on Microsoft Surface V2. With the touch commands already wired up for you. This comes at a great time with the 3D control being retired in December developers now have a platform to migrate their applications to. This control will also be a lot easier to develop against than the 3D control as it’s WPF and not Active-X. The maps are in 2D but that said it is possible to generate 3D models in WPF and it’s only a matter of time before someone writes an article on how to do this. Already there has been some great examples of 3D models and Silverlight.
The official announcement can be found here: http://www.bing.com/community/site_blogs/b/maps/archive/2011/08/23/announcing-the-bing-maps-wpf-control.aspx