I’ve only had my new iPhone 3GS for a few hours yet I have found the biggest improvement; the new Camera. Below is a comparison of both the iPhone 3G and the iPhone 3GS cameras.

Both pictures were taken from the same distance from the keyboard. I used both of my ultra-compact iPhone power adapters along with my old iPod Mini as a stand. The second one is so much clearer because of the auto-focus and higher pixel camera. The auto-focus is such a nice feature. I still need to try the video though.