NUKEMAP 2.5 is now live: 1. you can now have live, local weather data ported in for fallout settings, and 2. KMZ export to Google Earth.pic.twitter.com/FEcCRYHdE2
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
It might be happening, but we'll see. Fee structure for Google Maps more expensive on iOS, and much harder to develop than web.