Here's an odd one. Every time I go into my Settings app on my iPad (4th Gen / 128 GB / AT&T) the finger touch on the screen becomes off by 2 inches to the right. If I hard reboot and do not go into the Settings app, I'm fine.
Thank you for finding that. I've actually just restored it to iOS 7.1.1 and then downloaded the ipsw from the Apple Developer Site fresh and I'm upgrading now. But I will make sure to check the zoom if it occurs again. I'm glad to see that it has happened to others.
Update: That is exactly it. It slips into zoom mode. It happened again and I used the three finger tap twice. It snapped it right back to normal. Appreciate your help on this. I passed it on to Apple via a bug report.