When Adobe Photoshop Senior Product Manager Bryan O'Neil Hughes showed me the new content-aware features of CS6, my mouth opened like an imbecile out of complete disbelief. You can basically move objects around your image freely and effortless. It's black magic!
Here's a video of what I saw. First you see the new clone-stamp like content-ware fill, which basically allows you to define a part of the image as a source to easily erase something from an image. This is impressive enough and a timesaver, but what is even more zomg-what-the-hell-did-just-happen impressive is using the same technology to move any object around the image.
Jump to minute 1:00 and see how it works. While this could have taken hours of hard work in the current version of Photoshop, the new version just makes it a matter of seconds. Literally.