The XCM Cross Battle Adapter 2.0 is built with a new function for swapping the controller’s triggers and bumpers. You can also swap the functions of A, B, X, Y buttons (Example: Set the function of A button to the X button or set the function of B button to the Y button, etc) and swap the functions of 2 analog sticks as well! The PS3 Six Axis mode and Rumble function are also supported.

You'll be able to find the Cross Battle Adapter 2.0 at Play-Asia, Console Source, Extreme-Mods and Divineo.
Images via comments.