homegroup post on e7 blog
i haven't even begun to dig through all the goodness that was posted on the e7 blog about homegroups, but i had 7 computers running windows 7 beta over the holidays and this was one of the main features i played around with. also streamed to my xbox 360 which was very cool and i'm really getting into the new media center capabilities. check out a great post about it at msdn.microsoft.com/e7