A best bet for Apple fans is the JOYSTICK-IT Arcade Stick for iPad. Regular $15 now only $5.
Bring your tablet-based gaming to the next level with the JOYSTICK-IT Tablet Arcade Stick. The JOYSTICK-IT gives you a real physical joystick for increased precision with touchscreen based games. Simply press down to attach the JOYSTICK-IT to your tablet based computer’s screen for improved gaming. No wires or batteries needed.
The JOYSTICK-IT works with thousands of different game apps. Any game that has an on-screen control pad of some kind is perfect for the JOYSTICK-IT… When you’re done, simply pull-up on the JOYSTICK-IT to remove from the screen.
Another awesome product is the iCade Jr. Mini Arcade Cabinet for iPhone. Regular $50, now only $10.
Ion Audio and ThinkGeek have collaborated to adapt their popular iCade, designed for the iPad, to fit your iPhone. With the iCade Jr., you can take your newest most favorite-est toy, your iPhone, and turn it into your oldest most favorite-est toy, an arcade game. Designed specifically to fit your iPhone or iPod Touch, the iCade Jr., allows arcade-like game play of hundreds of games using that shiny red joystick and buttons. No quarters needed.