We posted about iPad mini jelly scrolling a few days ago.
From the linked Ars Technica post, here’s Apple’s response:
In response to our inquiry, Apple has told us that the “jelly scroll” issue on the 6th-generation iPad mini is normal behavior for LCD screens. Because these screens do refresh line by line, there is a tiny delay between when the lines at the top of the screen and lines at the bottom are refreshed. This can cause uneven scrolling issues like the ones observed on the iPad.
And Ars’ take on this response:
We maintain that this effect is noticeable on the iPad mini in a way that it is not noticeable on other 60 Hz LCD iPads we’ve tested, like the iPad Air 4 and the latest $329 iPad. There’s also a clear dividing line down the middle of the screen in portrait mode, as observed in our testing and in the video linked below—it’s not a problem isolated to the extreme edges of the display. The upshot is that the company doesn’t believe there is a hardware or software issue to “fix,” and that the screen apparently is the way it is.
Bottom line, Apple is saying, “Is what it is, get used to it”.