Coming from an iPad 3 here, just got the Air 2 yesterday and I'm noticing some reduced touch sensitivity here and there. On iMessage, I usually have to tap the send button twice in order for it to send. Also, on the Simpsons Tapped Out, a lot of the taps don't register at first, have to tap things repeatedly sometimes. Meanwhile. Things like typing on the keyboard respond instantly, so I'm hoping it's just an OS issue and not hardware related?