Hidden within the recent update to Atari’s Greatest Hits app is a rather tasty snippet of information. It points to an Atari branded joystick add-on for the iPad. The joystick and base is set to be called the Arcade-Duo and has a retro arcade type red balled joystick and four buttons.

Relive the fast-action excitement of all your arcade favorites, like Asteroids, Centipede, and Missile Command. Simply connect your iPad to Atari's Greatest Hits app for Duo, and you're ready to share the fun with family and friends anywhere!

It appears to be a similar concept to the iCade although that does have a retro arcade cabinet too. Looking at the two designs this one may come in at a much more favorable price than the $99 iCade. The only availability information is that it is "coming soon".

These type of accessories only work with certain games which makes them very limited. I would welcome a solution for an Apple supported system; that way all developers could get on-board and offer support for the majority of suitable games! Would you use a joystick system if more games were supported or do you think the on screen controls are good enough for gaming?

[Discovery Bay Games via Macrumors]