A few ongoing issues:

* I am still seeing lots of double articles, read and unread, and even two unreads and a third read of the same article.

* marking all read within a feed does not always succeed 100%. It is necessary to exit the feed, return to it, as before..

* Marking all read from the main menu does not do anything at all.

* Switching to portrait mode doesn't always result in text reflow. If you go from the main feed list in landscape to any article list, then switch to portrait, there is no reflow. To fix: back out to main feed list while still in portrait, and then back to the article list.