Update (Sept 24th): Apple added a Knowledge Base on this
The latest beta version of iOS 7 for mobile devices and Apple TV introduces a new method of pairing your iOS device’s Remote app with your Apple TV. Previously, the pairing procedure required the use of the regular infrared remote that comes with the Apple TV. Today’s beta allows the user to simply tap the phone on the Apple TV to connect using Bluetooth. The feature requires a Bluetooth 4.0-capable device, which means only more recent iOS devices are supported.
Automatic setup for Apple TV, using Bluetooth. http://t.co/qMCI605dWb—
Benedict Evans (@BenedictEvans) July 29, 2013
It’s possible that Apple is using this setup process as a testing platform to decide whether Bluetooth 4.0 could be used as a method of authorizing payments, much like NFC is used on many Android phones. While Phil Schiller noted last year that he did not believe NFC was a critical feature for the iPhone, perhaps Apple is making plans to add NFC-style features via Bluetooth instead. The company could also be considering a tap-to-share AirDrop much like the “bump” feature seen on recent Nexus devices and other Android phones (though Apple executives did make fun of the feature when presenting AirDrop during the iOS 7 keynote).