Adobe Photoshop CS6 Beta is available to download here.
"The world’s best digital image editing software is about to get even better. Explore Adobe® Photoshop® CS6 beta for a sneak preview of some of the incredible performance enhancements, imaging magic, and creativity tools we are working on. Discover for yourself why Photoshop CS6 software will be a whole new experience in digital image editing."
In this video Julieanne Kost goes through her 6 favourite new features in Adobe Photoshop CS6
http://www.youtube.com/watch?feature=player_embedded&v=uBLXzDvSH7k