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
Based on my experimentation with iOS 7 AirDrop, it doesn't seem to be using WiFi Direct. The transfer rates are very low indicating that it may only be legacy Adhoc WiFi (capped at 11 Mbps). Did you ever read Apple claiming to support Wifi Direct explicitly? Please read my blog post for details.