The video below shows the iFixit teardown of the new iPad mini. If teardown are not your thing, skip to 1:20 in for a great shot of the iPad mini “jelly scrolling”. Best video of this I’ve seen.
As you watch it, note the left and right sides of the screen alternating their refresh. That’s the effect. Slightly annoying, perhaps, but it is what it is, and for me, it’s more interesting than it is a problem.