Re: In context:
>>I can't be the only one who has wondered before why Apple haven't made an iOs gamepad - or released a reference design for the 3rd party peripheral manufacturers.
They have, and it is that reference design that the Logitech, Moga and others are based on
https://developer.apple.com/library/ios/documentation/ServicesDiscovery/Conceptual/GameControllerPG/Introduction/Introduction.html