Blend4Web inside Second Life

Take a look at this picture:

Yes, this is real. Blend4Web content is running just inside another virtual world in realtime!
You can read about it here (in German)

Impressive! Worlds within worlds. In this case a scene that does not require a client plugin runs within a scene that does. It won't be long before we have Second Life or something just like it running in a browser with no other plugin.