The iPhone 4 brought FaceTime/Mobile Video Calling to "the masses" too. Granted, the iPad 2 (and eventually the Mac) got that as well - but the forward facing camera was new (though entirely expected, granted).
I now FaceTime with my Family quite regularly.
I agree though, I love my iPhone 4 and am sure the 4S with it's incremental updates will simply be more-awesome. But for better or worse, I think version number bumps are now associated with big upgrades on iPhones.
Expectations are set high, but then Apple will quite happily just ignore everyone's expectations and do what they want.
Good point, I had completely forgotten about FaceTime. I still think people would have treated this as a major upgrade if it just had a different name and form factor, with everything else the same, but you're right that it is a bit less, in terms of completely new features, than previously.
Personally, I look at the specs for a 4S and have trouble coming up with anything new that I'd want to add. But of course that doesn't mean other people can't, I may just be unimaginable.
I now FaceTime with my Family quite regularly.
I agree though, I love my iPhone 4 and am sure the 4S with it's incremental updates will simply be more-awesome. But for better or worse, I think version number bumps are now associated with big upgrades on iPhones.
Expectations are set high, but then Apple will quite happily just ignore everyone's expectations and do what they want.