Mike Cane tipped me to this video on Youtube.
There's this one ereader owner (he's also a pilot, obviously) who has been posting demo videos of airport approach charts. He's done quite a few ereaders and a couple tablets. His Youtube Channel is fascinating. I haven't seen that many ereaders in one place since, well, I last looked at my desk. If you know a pilot, do them a favor and send them a link to chartbundle's account.
Here's a video that shows 5 ereaders displaying the same chart.