Via stick on the AnimeNFO forums.
Joost isn't exactly a new concept, but it looks like somebody is at least trying to do over the Internet what Tivo simulates now for TV and the older VCR used to do; allow you to watch what you want, when you want to, but this time, it's on-demand instead of having to wait till the show airs on T.V.
Looks like they only have Beta Client for Windows XP and the Intel Mac O.S. X, but PPC Mac O.S. and Linux clients are in the works.
It's something to keep an eye on, that's for sure.
While I'm thinking about it, this is something that I would think LUS should look into while building up the services they will supply over fiber.