This is lovely work. Building for older users taught me how much "obvious" UI isn't. Most of my users are 55+, and the bugs that mattered were never the clever ones: layouts breaking at large system font sizes, and people not finding an app because they typed the name the way it sounds. A physical keypad with a screen reader that actually works sounds like it solves a whole class of those problems at once. How does she handle text input, T9 or voice?