I\'ve been looking at iOS 7\'s new P2P networking framework, MultipeerConnectivity, and from the description, it seems to me that it uses a combination of some kind of Wi-Fi
This is what we know:
My working theory: the MultiPeer uses Bluetooth Classic, based on the above.
iOS Bluetooth Classic is known to be under the Apple MFA Accessory API's tight control and lockdown, including the MFA authentication challenge-response. Apple controls the MFA encryption keys (either in software or by the accessory authentication chips). It makes it inaccessible to other platforms.