I can't get over how incoherent the mobile app has become. To give a recent example. Yesterday, I had commented on another person's post. I later wanted to get back to add to the comment. So I navigated to it from my activity log. This took me to the post, but wouldn't display any of the comments on the post. The screen was clearly rendered differently than when I pulled up the person's wall, found the post, then clicked on the comments to find my comment. My guess is that "activity log > post" was written by a different engineers than "wall > post". This is the latest, updated iOS app.

That's just one minor example. There's crap like this throughout the app. The web site is also glitchy as hell these days. When I brought up m.facebook.com the other day and went to type a status update, for every space I typed, two spaces were inserted.