Apple used a closed event for developers on the first day of WWDC to announce a new gaming feature in iOS 8 called Controller Forwarding. As its name implies, Controller Forwarding is an expansion of the Made-For-iPhone controller program that Apple introduced in iOS 7 and allows developers to forward commands from an iPhone to control and iPad or Mac.
Controller Forwarding allows accessory manufacturers to create MFi (Made for iPhone/iPad) controllers that attach to the iPhone and function as a controller for an iPad or Mac. Unlike the current crop of Bluetooth controllers that connect to a device, developers working with iOS 8-compatible controllers will be able to take advantage of the touch screen, physical buttons and sensors on the iPhone to interact with games running on an iPad or Mac.
Besides this improved controller support, Apple also revealed that the MFi program is growing in popularity, with thousands of game titles now supporting these external controllers. Apple also confirmed that Game Center now has 130 million active users each month.