Heh, I actually spent a moment in front of an Epcot Space Race kiosk a couple of days ago, but I was too impatient to actually play -- I had more attractions to see ..! Now, playing the game at home, I find that it is rather addictive, though it isn't the most sophisticated game. The Epcot web cams are also great.
It would be interesting to see more Internet-attraction interaction at Epcot; this is definitely the sort of thing that belongs in Futureworld. It would be great to see an attraction that is partly controlled by users at home (for instance, home users remotely control a Futureworld attraction). Of course, we'll probably never see this, due to the potential for abuse or neglect, but it would definitely be interesting.