Please clarify what do you mean when saying "work with Silverlight 4". We have initial implementation of Ria domain service (no codegen for the moment), plus we ship the DSW together with OpenAccess, and it can be used to implement various services technologies, plus client-side application code.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.