It is added, yet we do not recommend using it inside VS at the moment. In the upcoming week we will probably ship our update that allows the Visual Designer to work in VS2010 and we will also introduce our folder and namespace generation options (to be honest they are inside the product but still need polishing and are not exposed to customers.)
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.