Made me feel very happy, thought I should share :)
From the point of view of a blind Android user relying on Talkback, this beta represents a profound improvement. Thank you, Wikimedia, for getting accessibility right! There are two defects you could clear up before releasing this app. There are a couple unlabeled buttons in the U-I. I have found nothing else to complain of so far! And, for that reason, I expect to get much use out of this app.
https://ticket.wikimedia.org/otrs/index.pl?Action=AgentZoom&TicketID=760...
:)
(We will fix the unlabeled buttons in the UI before release)