I have a question that igorsk mentioned was being looked at, and that is the button on the 360 used in a video demo side by side a PRS-505 had a very audible click sound. I am hoping that has been addressed at this point in time? It really would be a big detractor for me.
Video
http://www.youtube.com/watch?v=PcRna0NtBZM
I'm pretty sure Pocketbook likely has heard this from a lot of folks so...??