Generally for the mobile device, it would be good to have a way to immediately open to Translate, Assistant, Search, Maps, all separately. Could be via widget, or separate apps.
But yeah I have the same problem, you go to the map and if you click around a few times, you have to go back, back, back, back, back, there's no easy link like with the other apps.
Hopefully the UI redesign Yannick mentioned resolves that.