All true about open inkpot, I should try it out. All my books are mobi or .lit - is that an issue?
+directory structure is great, I forgot the Sony didn't have that. It is a much more natural way of managing files. Does it out weigh the negatives? up to you.
I suggest any one considering a Bebook take a look at the support forum to see the range of issues:
http://mybebook.com/forum/viewforum.php?f=4
The Sony seemed more for right handed people and the Hanlin/Bebook for left handed. I prefer my page buttons on the right like the Sony although this hasn't been a major hassle for me.