iPhone 3G & 3GS Wallpapers
To download navigate from your iPhone 3G(S) press and hold to save the selected image below. Navigate to [Settings] and [Wallpaper]. Select to [Choose From Camera Roll] and select the wallpaper that you wish to use, when prompted DO NOT scale and hit [Set]. On the popup menu choose the appropriate screen that you wish to apply your wallpaper to and you're done.