Touchscreens don't really need that much padding, anyway. You need some padding around active areas for touch actions, but a touch target can still be pretty s

Touchscreens don't really need that much padding, anyway. You need some padding around active areas for touch actions, but a touch target can still be pretty small, e.g. consider your on-screen keyboard, where each key counts as a separate target. Areas of the screen that simply display information or content should be totally unaffected.