Why would they make FaceTime its own separate application???
At a guess, so they can roll out a Windows version as well if / when they decide to.
Why are people worried about iDVD and iWeb?
They obviously got updated in some way, there was just no time to show them in the keynote with iPhoto, Garageband, and iMovie taking up 45 minutes.
App Store for the Mac can be interesting, if well done. Obviously, allow user to download through our own means.