First, a very cool, very thought provoking article. Second, a toaster is a stupid cyberspace object example. One my be able to turn the toaster on or off in cyberspace, but the bread has to get in the toaster somehow. I think, maybe, in real world space one has to go to the toaster, put bread in it, and turn it on there.
Lets find a more exciting and plausible cyberspace example.
Now, after berating the toaster, I get to show that I am jini neophyte. I suggest we start here. I have lifted directly out of the article what was for me an enlighting paragraph. Most of Jini's advantages are inherent in its service object, a chunk of mobile code and object state sent from the service provider to the client. In effect, the service provider injects a small piece of itself, the service object, into the client's address space.