The iDeviceWalls website is ideal for those looking for interesting theme-based wallpapers. With categories such as Jailbreak and Flash, you will find some very interesting wallpapers that may not be available elsewhere. The website is extremely easy to use. All you have to do is choose the wallpaper you want and save it to your camera roll. The downside is that every time you choose a wallpaper, an ad will take over the screen and you have to close it before you can save the wallpaper.