Many apps on iPhone Duo are broken right now and it requires real work to get right. When we first got the @MSFTCopilot app running on Duo, so much was in a broken state. We had too much “if iPad” in our layout code instead of adapting to size classes and the space available. iPhone Duo has a lot of postures. Fully open, rotated, the little front screen, partially open, the front screen rotated...we kept finding new ones we didn't anticipate, and every one needed its own fixes, layouts, and design decisions. Good luck designing this by hand in Figma...way better to flip it around in the sim and design it right in code. All of the AI apps have converged on a sidepanel to show the list of conversations behind a burger menu that slides in from the left. But on the iPhone Duo front screen, the tab bar and the navbar controls sit vertically on the right. Just moving the existing burger icon to the right doesn't make that interaction intuitive. So we dropped the burger icon on Duo. There's now a chevron on the right (which is common across the OS). This is great because it's so natural to hit the back button with your right thumb. Tap it and you get a full page view with all your conversations and everything else that would've been in a peak view side panel. Then you open up the device and it all just carries over with smooth continuity. Using the native split view allows side panels to be open by default on the big screen. This is where productivity feels awesome. Kick off real work with Cowork, check on running tasks, or build full apps on the new Copilot Code (coming soon). It's rare to get a new iPhone form factor to experiment and express yourself with. Software feels fun again on Duo.