No reason to get into the trenches
I'm not really making a comparison between the new Nook and Sony readers.
My point was that the Sony readers, like many other Sony products, were so technologically advanced that it's taken until now for the competitors to catch up. It's the main reason I just got one myself, I wanted the best there is. (And I am cursing myself now for not waiting two weeks and snatching one up for 200 grrrrrrrrr).
The ghosting sounds unfortunate though. I actually think improving the software is a sound step forwards. Yes we get used to the blinking, just as I got used to my old Cybook taking 10x longer to switch pages than my sparkling new Sony. It doesn't mean it isn't better though.
My ereader is the best piece of technology that ever came into my life, so I hope they'll come up with new and better improvements, so we don't end up having to read our books on Ipads or other similar devices.