@bigbiff: The dividers are actually there. Unfortunately, they are set to black, so on most themes, you can't see them. I haven't yet found how to change either that, or the background to make them stand out, but I totally agree this needs changing.
@Rob1n: PR1.2 changed the flag that needs to be set to stay in Landscape. Thp published a fix recently to his portrait library that I'm using, so I just need to integrate it. Not sure what's wrong with the Preferences dialog in portrait mode, but it needs fixing indeed.
Another thing that seems to have changed recently is read feeds font size.