I\'ve recently been doing development upgrading our maps to v3 and during development I was using my own personal key. Everything was working fine. When it was time to go to
Actually you want the Google Maps JavaScript API to be enabled instead of Google Maps API v3 because the former is what you are actually using here. The latter is now divided into iOS and Android BTW.
Also you need to add your reference into your server key.
If it is local, it should be something like:
localhost/*