The Nyko Raven is a new controller that is going to be released soon for the PS3. It comes in two different version, one is more like the Dualshock 3 controller and the other like the image above giving more of an xbox 360 feel.
The one with the 360 layout has all the exact same button features with the concave analog sticks along with the trigger L2 and R2 buttons in the back. The material surrounding the controller is said to be silky smooth, which from the picture looks to be about right. The controller requires you use the USB connector to use it so no wireless bluetooth with this beast, as well as it doesn't turn on your PS3 from your seat but all that hardly outweighs the pros.
As far as I'm concerned I'm going to wait for some reviews first as it is a third party controller for the PS3 and they tend to have a bad track record. Most likely I will purchase it and see how it affects my PS3 game, I personally like the PS3 controller and it's size but it's always good to switch it up.