What we need is better batteries, or better technology. So they can get smaller and smaller and more powerful.
I been getting 3 days now with light turned off when its brighter during the day. I do most of my reading with light and not in bed. I fall asleep in bed too fast to get much reading done that way.
I read heavily, hours each day. I do not use the audible feature on it. I just tried it out when I first got it to see how it works. I have wifi off and when I do have a light on its around 8-9.
So yes, it doesn't last as long as the O1 or the Voyage. But I am fine with it at this point. I am still trying to figure out if turning touchscreen off has any effect on battery. I do know it has an positive effect on my obsessively checking the battery percentage.
I do think it goes down slower starting at 100 and a tad faster when it gets lower. Might just be in my head.
Done worrying about it.