Low priority, but actually useful.. Just had a thought, phones last longer if you only charge to 80% battery..
Would be awesome if the phone reported battery level as a metric, this was you can then automate your battery charging.. I expect you can already do this on Android via Tasker, although building in to the app would skip a step..
.. Reporting on other metrics such as wi-fi network, incoming calls would also be an advantage, probably many others.. any other suggestions welcome