In http://www.telerik.com/account/support-tickets/view-ticket.aspx?threadid=631805 Plamen indicated a feature request was created to implement CRUD via ODatabinding for the RadScheduler control but I can't find it. Currently it's read-only but we really would like to be able to maintain appointments as well via OData because we already have that API available in our product. This way we don't have to build\maintain a new web service.