Tapping the top to go up was great in Apollo, a Reddit client, but the guy took it a step further, tap again to go right back to where you were. Otherwise agree, it’s a good idea but it’s not explained (at all) and it can get in the way.

I got you beat though: by default, iPhone has a feature called “shake to undo”. It’s very sensitive. One of the first things I disabled. I mean you hit a speed bump (as a passenger) and everything you typed is just gone.