It is on many sites, best I found is:
Live blogging as I post this topic! Highlights:
The iPhone 3G will be available July 11th in 22 countries. The maximum price around the world is $199 USD. $299 for the 16GB -- a white version of this size will be available too.
GPS support now integrated into the iPhone.
How does the iPhone 3G tackle the challenges? 3G = faster data downloads, perfect for Safari and Mail. Comparing download speeds between 3G and EDGE. 3G finished in 21 seconds. EDGE finished in 59 seconds.
With GPS, the iPhone can do tracking. A pulsating dot is moving across the Google map as a car drives down Lombard street.