Although i'm obviously just as exited as everyone else about civ4, these screenshots make me worried that civ4 may just be trying to be something it isn't.
One of the best things about civ is the simple, uncomprimising interface - and i'm worried by the look of civ4 screenshots that Firaxis are trying to make it seem more "sophisticatedly user-friendly", through hidden controls and smarter graphics, when one of the best features of civ is it's simplicity and straight-forwardness, whilst a great and complex gae underneith.