iCade 8-Bitty from ThinkGeek
340http://www.thinkgeek.com/ecea?cpg=yt
-Classic retro-styled game controller fits in your pocket and works with iPhone & iPad
-8 button control including 4 face buttons, select, start, and two shoulder buttons... plus the D-Pad for movement
-Wireless Bluetooth® connection with auto power save mode
-Mini version of larger size iCade cabinet invented and designed by ThinkGeek
-Fully compatible with all iCade games
-Completely open development platform. App developers can add support for iCade with no permission needed from Apple or ThinkGeek. (See links for code examples below).
-"Atari Greatest Hits" iPad App ready to go with the iCADE, including support for over 100 classic Atari games.
-Atari App comes with Missile Command for free, other games available for in-app purchase. 3-game packs are $1. All 100 games are $14.99
-Compatible with iPad, iPhone, and iPod Touch. Android support for most tablets and smartphones.
NOTE: Atari Greatest Hits only runs on iPad, not on iPhone or iPod touch.
-Requires 2 x AAA batteries (not included)
Music by Sentinel "Engineer"
http://www.jamendo.com/en/track/635446/engineer