The only problem with the iPad mini is it doesn't exist.
People were talking about Apple TV integration since last year, after Apple adding Bluetooth 4.0 to all of their products.
"the new Apple TV will enable some interesting uses. One possibility includes voice control via Siri, with your iPhone 4S acting as a remote Bluetooth 4.0-enabled microphone to take Siri commands. Another possibility is a dedicated, low-latency touch controller for Apples set-top box for comfortable gaming on the big screen. It could be similar to the Remote application that lets you control your Apple TV using an iOS device. This is just scratching the surface as the many benefits of the new Bluetooth 4.0 standard of which low power consumption and low latency are the two crucial differentiators should spark the creation of seamless, more battery-friendly AirPlay accessories for Apples mobile devices. One thing is certain: Apple added support for Bluetooth 4.0 to iPhone 4S for a reason."
source: http://9to5mac.com/2011/12/12/apple...-accessories-with-airplay-over-bluetooth-4-0/