If your a gamer on the go sometimes the screen  controls may not satifify a gamers needs.  ThinkGeek.com has created the Joystick-It attachment available for the iPhone.
Its a pretty simple concept just stick the Joystick-It onto your screen, and now you have dual control gaming on the go.  When your done jsut pull the Joystick-It off the iPhone screen., then your iPhone is back to normal.  iPhone users aren’t the only ones who can join in on the fun, Joystick-It can attach to any device that has a capacitive touchscreen.
The Joystick-It can be purchased now for $17.99 at ThinkGeek.com