DEMap or DeepEarth map control was first conceived in a blog post by John after Mix 08 and the announcement of Silverlight2 and the DeepZoom Multiscale image control.
The DEMap control is still a core component and the only open source Silverlight Map control based on DeepZoom available. However our focus has shifted on making a toolkit of controls and compents to work with the many other Silverlight Map controls available.
In the short term much of the functionality of DeepEarth will be extracted out of the map control and made into reuseable components. We apprehiate your support during this transition.
The full DeepEarth control can still be downloaded from our release section. Stay tuned for the slim version coming soon.