A weird glitch with Apple's iPhone 5 has been uncovered, which sees touch input drop out when the phone's display is continuously stimulated. It's pretty niche and unlikely to break anything too seriously, but it might effect some gaming uses if left unchecked.
The glitch was first mentioned in a tweet from a developer, who noticed that if you get very, very bored and start aimlessly flinging the iPhone 5's screen around rapidly, it will occasionally stop responding to touch input and abandon the order to scroll altogether.
The issue doesn't occur on iPhone 4S units that have been upgraded to iOS 6, so would appear to be something particular to the hardware of iPhone 5 itself. If you've got one, see if you can replicate it. [Recombu]