Dropbox works fine for me, but as Nate says only for the Pocketbook folder, which is fine for my usage. Haven't done much pdf viewing but not experienced big problems so far. The page skip back bug seems to be fixed in the latest firmware update. I just downloaded and applied this update via wi-fi.
After updating the reader did not remember one of my current book's settings (auto rotate was switched back on, when I set it to off) but otherwise it seems to have recalled everything else I set up.
I think there is a new sleep screen, with a cartoon graphic of your reader with z's coming in thought bubbles. I don't remember seeing that before, but I normally use the flip cover to put it to sleep.
I like the colours, they're subtle.
