Will OpenSocial replace existing portal standards ?

Going by the current trend it seems that OpenSocial might replace current server side portal standards like Portlets and WSRP for good. OpenSocial gadgets can be considered the Web 2.0 equivalent of portlets

While portlets are server-side components that depend on aggregation at the server, OpenSocial gadgets are lightweight, javascript/DHTML/Ajax components that aggregate on the client (i.e the web browser). Portlets are expected to be deployed and maintained by administrators whereas OpenSocial gadgets can be pulled, on the fly, from just about any given source. And there is nothing much that you can do with portlets that cannot be done with a OpenSocial gadget and a servlet backend.

Time to say goodbye to all Portal Servers out there ?