Sun's been talking at it's last couple analyst conferences, and on its executive blogs, about how the next step in 'grid computing' is the display grid. They then wank on about SunRays (desktop thin client on a honkin'big backend) and the power of VoIP and so on.
Well, while Sun was talking, someone else went out and did it. Now, this is a Cory Doctorow BoingBoing post, so grain of salt and YMMV and so on, but still. This is here. This works.