What is the best way to get the symbology from the source AGS service, and still allow layer querying when connecting using the Silverlight API? Dynamic layers seem to keep the source symbology, but do not allow identify/query. FeatureLayers drop the symbology, but allow identify/querying.
FeatureLayer does not have anything like this. The only thing you get by using FL is direct mouse interaction and having access to all the features in memory on the client. This also means they have to be rendered at the client, and you are in charge of specifying symbology. ArcGIS 10.x will support exposing a subset of the MXD symbology, and FeatureLayer will automatically use that if you don't override the default symbology.
