Earlier quoted context omitted.
If their controller fails horribly, perhaps they could use the OnLive 'universal' controller -- the one that works with OnLive's console as well as all laptops and android/iOS devices. It's actually a really nice controller -- better than the PS3, slightly worse than the Xbox 360 (but without the battery pack issues).
Wait, how can the OnLive controller support iOS? AFAIK iOS only supports Bluetooth HID keyboards, not joysticks/gamepads.
See also Core Bluetooth (though that's somewhat different, being for Bluetooth 4LE devices).