RIAServices.EF4 provides the LinqToEntitiesDomainService<T> class which can be used to create Domain Service classes for use with an ObjectContext from Entity Framework 4.0. This package can be used in place of a GAC reference to the System.ServiceModel.DomainServices.EntityFramework assembly, making bin-deployment easier. The dependency on RIAServices.Server provides the other assemblies that are needed for the server-side runtime of RIA Services.
$ dotnet add package RIAServices.EF4No README available.