I honestly never saw this glitch on 6.0 on my iPhone 5. 6.0.1 claims to have fixed it (as listed here) but today I saw it on my own device, which has 6.0.1, for the first time. I was updating an FB status via Siri. She screwed it up and rather than telling her to "change it", I tapped on the message to edit it by hand. But rather than choosing to type out the changes by keyboard I pressed the microphone key and dictated them. At that point there was a nice horizontal distortion line along the top edge of the end-dictation button (the rectangular box w/ the mic in the middle that flickers as you talk). Tried to capture this on video w/ another phone but either the dictation timed out or I hit a button by mistake to cancel the dictation. I haven't been able to reproduce it since. Is anyone else still having this screen glitch on 6.0.1 (or 6.1)? Thanks.