Everyone has their own "top feature" I'm sure, but I'm surprised that it seems no one is really excited about low power mode. Granted split screen, and those sorts of features are pretty big and important, but if low power mode actually does what Apple claim it will then that's a pretty big gain in terms of day to day usability. It'll be a few days of testing to see how well it actually works, but it's looking promising so far. It's nice to see Apple looking at options to have the phone limit it's performance and background processing etc. to the advantage of battery life - it's the one thing (well that and they doubled as a hammer in a pinch) that was always better about non smartphones. Anyway - interested to hear from anyone else who's trying this feature out.