Is there a way to auto refresh a feature service? Here's my dilemma, I have layers that are editable. I need snapping and auto-refresh for each layer. Dynamic services can auto refresh but not snap and feature services can snap but not auto refresh.
In the next version, 3.1, layers of type "feature" will have an autorefresh option.
In the 3.0 API this is already supported, so if you are working with the source code of the viewer and compiling it yourself, you could add support for it yourself.
Just to clarify since your original question asked about snapping and autorefresh - we're not adding support for snapping to server-side features (the dynamic map service case) in the 3.1 release, but we are adding auto-refresh for feature layers to the viewer.