The iPhone 3GS looks exactly like the previous model. It shares the shape and the same external controls, but the iPhone 3GS is unique in a handful of ways. You can get both memory sizes in white or black, and the iPhone 3GS display sports a fingerprint-resistant oleophobic coating that is supposed to attract fewer fingerprints and smudges. The new model shares the same dimensions as its predecessor, but it's slightly heavier (4.76 ounces versus 4.7 ounces), a virtually unnoticeable difference.
The menu interface is also the same, but in the past year, as we've added apps to the Home screen, something new has begun to bother us. As intuitive and simple as the interface is, it becomes unwieldy after you get above four menu pages. Swiping through multiple pages is tedious; and it's rather painful to drag applications from page to page if you're an organizational freak. We hate that there's no way to categorize related apps into folders, such as one for news, another for social networking, and so on. Not only would this cut down on menu pages, but you'd also be able to find your app faster.