Pinch to zoom, one finger to pan in the drawing viewer — both work independently when pinning Task List items.
The Photos library is sized for phones — controls, layer toggles, and the image itself stay on-screen.
Submit shows you it registered — the button gives immediate feedback when tapped and disables itself with a spinner while your submission saves, so there is no need to tap twice.
More room to work — submission pages use tighter padding on mobile, and the floating help button no longer sits on top of the Submit button.