As far as page refreshes, Kindles and other readers have had settings to regulate them for a while now. Kindles have advertised fewer page refreshes, but in my experience I've always needed to set the page refresh to activate with each page turn, otherwise I get ghosting. I'll believe the claims of much better page refreshing when I see it demonstrated. I personally have no issue with refreshing pages with every page turn, so it isn't a big improvement IMO.