Say what you want about the Sony PRS-900 and its "odd shape," (which I personally kind of like with it and the later PRS-950) — changing the battery on the PRS-900 was just plain easy. Why couldn't they do this with more eReaders?
I've attached some pictures to show what I mean. Kind of like replacing non-smartphone battery.
Here's the NewPower99 replacement video...
https://www.youtube.com/watch?v=tE5-L5O94Q4
Note to JSWolf, I tried embedding the video, but it kept giving an error and saying "try again later."