When looking for the best iPhone 4 wallpapers, you will notice that there are many high-quality choices that can be found in the app store. Most of these are available at a 640×960 resolution, which will look great on the device. There are several advantages to these high-quality images, including compatibility with many devices and operating systems. The following are the top three choices for desktop backgrounds on the iPhone 4. You can find more information about each of them below.