You know when a photo has that fuzzy background thing going on and the subject is sharp while the rest looks all dreamy? That technique, usually achieved by setting a camera’s controls to a wide aperture—the smaller the f-stop number, the bigger the aperture—remains one of the easiest shortcuts to a photo that makes people go ooh. Not one to stand by tradition, Google just released a camera app for Android that does exactly the same thing—except you can adjust the focus and that dreamy blur effect after you take the picture. Ooh. Can Free Software Mimic Expensive Hardware?