The new iPhone is amazing Dave. The speed, camera, resolution, looks, battery life, and just everything!
Something I actually noticed once I imported all the pictures I had taken on my 3g to my 4...the iPhone actually cleared up a lot of pictures I had taken with the last phone. I was pretty amazed with it, and still am of course lol
Oh and your gonna have to get iMovie, its a pretty neat app. I have it on my Mac, and its amazing for a video editor on a phone.
Here's a good example of how well it takes pictures. The dragonfly was no bigger than an inch, yet you can see the detail in its wings. Notice all the little water drops too!