Snapheal is a cool, inexpensive (US$7.99) photo editor for the Mac with one very high-end feature. It mimics the Photoshop content-aware fill feature that was introduced in Photoshop CS5. This little digital trick allows you to remove unwanted objects or people from an image. Using a series of algorithms to determine what should be filled in where the object you removed was, it smartly and quickly repairs the photo with intelligent guesses about what to fill in.
We reviewed version one of this app about a year ago. This version is faster and offers Lightroom and iCloud support. Plus, it works smoothly with Mountain Lion. The GUI has been streamlined and the eraser tools now work with higher precision.