I want to build a wpf/silverlight mapping application that enables real-time visualization of features in a map, and that allow different users to add features (points, polygons) to the map. My initial thought is to use WFS-T for this purpose, but unfortunately, I cannot find any free/cheap SDK that provide support for WFS-T within WPF. My question is therefore:
Does anyone know about a free/cheap SDK that enable support for WFS-T within WPF applications?
p.s. there's no need to mention ArcGIS products as an alternative, I can't afford them.
Thank's for your attention.