I was at an Orioles game last year and my friends and I, (all iPhone owners), were sitting behind a guy that was using a quickreply text message feature on his iPhone. It was a little window that had popped up in the middle of whatever he was doing, he typed into to send a text, and then proceeded to do what he was doing. We watched it several times wondering what it was.
Could that have been a third party app?
Could that have been a third party app?