Many have tried, and many have failed, although Tt eSPORTS may have hit the nail on the head. Contour is a Bluetooth controller for iPhone, iPad, and iPod Touch that has a layout similar to an Xbox controller, but includes a foldable clip to hold an iPhone or iPod Touch.
Contour will support iPhone 5 or higher, iPad 4th Generation or higher (including iPad Mini and iPad Mini with Retina display), and iPod Touch 5th Generation or higher. Contour’s built-in Lithium-ion battery is rated to last 10+ hours, and when it does decide to give out, it can be charged with the included micro USB cable. ThinkComputers’ own Bob Buskirk had a chance to demo Contour, and he said it is responsive and lag-free.