Looking for some high resolution wallpaper to take advantage of the 960×640 resolution of the iPhone 4? We’ve come across a terrific free application that has a huge library of very high quality and high resolution wallpapers. It’s a free app called iWallpaper, and it’s a breeze to use.

You’re presented with a gallery view after choosing the HD category from the main screen.

After selecting the image you want, hit the download buttons which will save the wallpaper into your photo gallery. Jump into the gallery app, and from there you can set the image as wallpaper.