More answers :1) A detailed matrix of available GP tools: http://resources.arcgis.com/en/help/runtime-wpf/concepts/index.html#/Supported_geoprocessing_tools/0...2) I was told by several sources at the 2012 ESRI UC that it is planned that even the Basic runtime will eventually have some 3D viewing capabilities. The GP analysis tools are what will require the Standard runtime and the 3D extension (see matrix link above)3) Again, at the UC, was told that your embedded license should work on future versions of the runtime. You probably will need to maintain your maintenance, though, for the development license