United Kingdom developer CMA Megacorp has uncovered an issue on the iPhone 5 and fifth-generation iPod touch that relates to rapid diagonal swiping. The developer has posted a video comparison of the issue on iOS 6 and iOS 6.0.1. It is unknown if Apple is aware of the issue, but it will likely be addressed in a future software update.
The glitch which as far as we’re aware hasn’t previously been spotted by anyone, manifests itself as a dropout of touch input when quickly scrolling diagonally across the screen. [...] Using the Mail app to clearly demonstrate the quick scrolling action, we dragged our finger back and forth diagonally from bottom right to top left on each phone’s display. Sure enough, whilst both iPhone 4S’s handled the fast paced scrolling to aplomb, one iPhone 5 struggled to hold its concentration, dropping and picking back up touch input whilst the other stopped registering input altogether.