Google is hosting its Google Geo Developer Day for major Google Earth API developers, local search gurus, and also to announce Google Earth 4.

According to Greg Sterling,

30K developers using the Maps API and 100 million downloads of Earth. Also, Maps and Earth, formerly separate, are being integrated — “different browsers on

the same database for different use cases."

According to Mike Pegg of Google Maps Mania,

Google’s top brass Eric Schmidt (CEO), Larry Page and Sergey Brin (co-founders) just provided open remarks followed by John Hanke and Michael Jones of the

this address and thoughts should be available on Google Video soon.. I’ll be sure to point you to it later. Google Maps product announcements to come soon!

According to Frank Taylor of Google Earth Blog:

Too many features to discuss here, but here is one big hightlight from the SketchUp guys: