Users can only gift apps via the desktop version of iTunes.
After removing the YouTube app, as well as Google Maps from iOS 6, Apple has removed another notable feature in the ability to gift apps.
The removal affects the App Store running on iPhones, iPads and iPod touches, with users still able to gift apps via the desktop version of iTunes on a Mac or PC.
Apple itself confirmed the change with a support document confirming that the ability to gift apps in iOS 6 has been removed from the iPhone, iPod touch and iPad. The document was published on September 21, the same date the iPhone 5 became available for consumers.
Apple stressed that iOS users can still gift apps using their iPhones, iPads and iPod touches if they're running iOS 5 or earlier mobile operating systems.

Wow.
"Apple's iOS6 also removes the ability to resell/referb phone to friend or family"
The Iphone 5 is like watching James Camrons Titanic. No matter how many times it comes out, it is always the same, with a few small tweaks. And people still pay to go see it. Yet you know, in the end, that the product sinks to the bottom.