That may seem quite irrelevant, but if I'd like someone to reinvent the OS, I'd like it to be people that have taken a stance in favour of stable, simple, straightforward software (the people behind Pinboard, Tarsnap; djb... just to name a few).
Even more surprisingly, Inbox (by Google) sorts everything by last message (last time I checked, which was a long time ago).
Notably, small teams can dictate priorities that don't scale at the level of tens of thousands of engineers.
These slides from the Chrome OS Internals [0] talk provide a good overview.
[0] https://events.linuxfoundation.org/sites/events/files/slides...
For example, you still cannot safely use any third-party keyboard on Android. Because Google refuses to give users a way to block internet access for individual apps, and third-party keyboards by definition can read out your passwords and everything you type.
Would just as well be helpful for all kinds of other apps. I'd be much less concerned about giving my camera app permission to take pictures at any point in time, if I knew that it can't actually upload those to anywhere. But I can't. I have to blindly trust my camera app for no reason other than Google not wanting to give up potential ad revenue.
but, who or what gives Google the capability to write a new OS? (e.g. are they currently employing a group of highly experienced, top-notch OS engineers? have they formed these engineers into an effective, efficient team? etc.)