One thing missing

When in navigation mode and currently offline, add a warning when one is about to end navigation that re-starting navigation will not be possible.

Reason: when driving, the "stop navigation" button is often hit accidentally when trying to hit the "route overview" button.

In general it would be the very greatest if navigation could be put to background in order to check e.g. information of a location, and resume navigation afterwards.

jakob.j.w about Google Maps, v4.41