adds AirPlay and support for iPhone 5 display..
Three months after releasing a standalone YouTube iPhone app, Google has brought it to Apple's iPad. The latest version of YouTube for iOS also includes another long-awaited feature: support for the iPhone 5's 4-inch display. Videos will now fill the entire screen on the latest iPhone and iPod touch hardware.
http://www.theverge.com/2012/12/4/3728590/youtube-ios-update-ipad-iphone-5-support
Three months after releasing a standalone YouTube iPhone app, Google has brought it to Apple's iPad. The latest version of YouTube for iOS also includes another long-awaited feature: support for the iPhone 5's 4-inch display. Videos will now fill the entire screen on the latest iPhone and iPod touch hardware.
http://www.theverge.com/2012/12/4/3728590/youtube-ios-update-ipad-iphone-5-support