To all of you that have said anything negative about FS2004:
GIVE MICROSOFT A BREAK!
FS2002 was/is ROCK SOLID. Anything can be improved, but I would be A-OK if they completly stopped prodction of flight sims. I have had a blast using MS Flight Sims since FS98.
Right now, it's still in the early stages. Believe me, FS2004 will be awesome. I'd be willing to bet it will perform way better then FS2k2, and it will probably look very sweet as well.