I'm talking about moving (multiple) Apps without having to drag them with the finger while tapping is so much easier with the right JB tweak.
As for the battery percentage, Apple could just replace the battery symbol with the percentage and use colors to show whether it's low (red), full (green) and/or loading.
Or the big and ugly systemwide volume bar right in the middle of the screen while you could make it like the Youtube one smaller and place it right below the status bar.
So many possible improvements and the reason why I still can't live without a JB.
While talking about the iPhone X:
Played some more with the HDR playback and the vimeo App does a really good job of showing what this new OLED/HDR capable iPhone can do, e.g.
https://vimeo.com/196168570
Shame that we don't have Youtube HDR support (yet).