Atari may be looking to capitalize on the success of the iCade gaming cabinet with its own joystick controller for the iPad. The gaming company recently updated its Greatest Hits iOS app to support the not-yet-announced Atari Arcade Duo Powered joystick. The gaming accessory has a slot for the iPad, a joystick and several buttons to control the arcade games made popular by Atari. Similar to the iCade, the device may use a bluetooth connection to communicate with the tablet. Its open design may also allow for landscape and portrait orientation. The game controller is advertised as coming soon, but the pricing is not yet available.