I'm wishing I had stuck with 2.0.5, it worked fine. Installed 2.0.6 and no longer have covers on my books, and it's not displaying book progress in the reader.
Thought maybe it was some left over files conflicting on the sd card, so I formated the card, and re-downloaded my books, no luck.
I re-flashed, and still no luck. 2.0.5 worked great for me, now I'm wondering if I can revert back.