Well, I've sent off an email to BoB to start the return process. I really think the Opus is a pretty good device, but it's just not turned out to be the device for me. After two and a half books I've had to reset it nine times, that just won't work for me. To frustrating. Not overly fond of the start up either, though I'm sure I'd probably get used to it.
I might look at a 300, but IIRC it's only very slightly smaller than the 505 so we'll see. Maybe Amazon will come out with the Kindle Mini