The three things a phone still could not do, all from a mobile review a second model wrote, and all confirmed against the code first.
The long-press menu scrolls. A live session's menu is fifteen to twenty rows, and at the padding a thumb needs that is taller than a phone. It ran off both ends at once: Open cut off above the screen, Kill below it, nothing to scroll. The menu whose whole reason for existing is that a phone can archive, lock and kill from it could do none of the three.
A working group answers a long press. Rename and delete were right-click only, so from a phone you could launch a group and never change or remove one.
You can hand a session a file, and get text back off the pane. Drop needs a mouse and paste needs the file already on the clipboard, so a phone had no route in at all. There is a paperclip next to Run now, and an entry in both menus. Coming the other way, long-pressing the output offers the line you pressed, what is on screen, and the last twenty lines.
And one the paperclip uncovered. On a 320px phone the prompt box measured 26 pixels, narrower than one word, because every other control in the bar refuses to shrink. Under 460px the bar wraps and the box takes the row.