I believe you are talking about a backend in which you can manage the different modules content, and every module should be in a separate tab.
Well, we are already using different tabs in the Administration. The modules buttons from the main menu are actually different RadTabs, they all belong to a RadTab control. Perhaps you can create a new theme for this RadTab, which is clearly showing that this is tabbed navigation. The harder thing would be to create an entirely new theme (using multiviews for example) for the backend, using the API.
the Telerik team