After using the new iPhone 3G S for most of the day, I’m very impressed with the dramatic speed improvement as well as the much better camera. I probably won’t be carrying a point & shoot camera in addition to my D90 any more when I travel.
The new tap to focus feature makes it easy to get sharp in-focus shots. Video recording is just as easy: a slider at the bottom of the screen switches between still pictures & video mode.
Videos appear in the camera roll along with still pictures, and you can upload a video to YouTube by tapping the action button.
I’ve posted a more detailed look here.