My iPad Mini 1 and late on iPad Air (using the same back up from the Mini) took FOREVER to sync in iTunes. It used to always stay stuck for minutes on the 'Waiting for changes to apply' screen. Fast forward to October 2014, I got the iPad Air 2 and restored from the same back up as those devices and to my surprise it syncs EXTREMELY fast. And I have the same amount of data on this device as I did on the last two. I believe it even syncs faster than my 6 Plus does. Do you guys think it could be the 2GB of RAM or new processor that makes it sync so fast? Has anyone else noticed this?