This question resolves to "YES" if Manifold fixes most of its current problems related to the 'back' button. This isn't a super precise definition. If I'm not actively annoyed by the back button behavior the way I am now, I'll resolve this to "YES". Here's an example of the 'back' button not working: On the profile screen, if you change the filter/sort, then click on something, then click back, the filter/sort you had set is lost.

Aug 1, 9:53am:

The main back-button complaint I referenced in the market description doesn't seem to be fixed yet: https://www.youtube.com/watch?v=BuJj8HVilDo