It would be very nice if attributes of features services in arcgisonline are automatically updated after editing sde in the arcmap environment. With ArcGIS server, there is automatic update of the attribute of the feature services during editing in the sde but with arcgisonline, there is the need to re-publish to overwrite the service for the attribute changes to take effect. It would be nice if feature services in arcgisonline had similar capabilities like the one in ArcGIS server.