We showed this working (over 802.11) at Amersfoort two years ago. We didn't ship the feature because it uses way too much memory, preventing the disk from spinning down.

I can't see it being too difficult to write a light weight server but I suspect it would still interfere with our caching strategy. If it could be turned on and off that would probably not be the end of the world.

I can probably dig out a receiver for the Lord if he wants to do something fun with it.

Rob