Google Maps not working in Emulator in Ionic Conference App Example?

The Google Maps control appears blank when running the conference app in emulator or native mode (although it does work in mobile web mode).

Does anyone know what I should do to fix my environment or is this a bug in the app?

See this closed issue for reference:

Okay this was pretty dumb and squarmy, I needed to add &key=[maps key] to the google maps js include!