I think I've finally seen the light of the #SemanticWeb.
I think web browsers should give users a way to register apps to handle displaying certain #RDF schema types.
E.g. if I open an ActivityStream URL, the browser should load my preferred client in the same way that clicking a PDF in my filesystem will open up my PDF viewer.
Users would then be able to bring their own interfaces to data instead of relying on some closed source proprietary app interface.
Also opens the door to mixing data