We are not going to say much about this one as its been covered elsewhere – see Franks Google Earth Blog Review and Ogle Earth’s thoughts, take a look at the YouTube launch video below and if you have an iPhone we recommend go getting the app.
The concept alone was almost unthinkable a few years back, a complete 3D earth on your mobile phone and when seen in action it does deliver. Sure there are not any 3D city models yet but from a purely geographical point of view Google Earth on the iPhone is a milestone in portable visualisation.