Steve Jobs just finished the keynote at the WWDC 08 and the iPhone 3G details are now available.

The iPhone 3G will sell for $199 (8GB) starting July 11th and comes in white and black for the 16GB version ($299). The 8GB iPhone 3G is only available in black.

Features of the iPhone 3G include 3.5 inch touch-screen, HSDPA, Wifi, Bluetooth 2.0, GPS, support for Microsoft Exchange ActiveSync, new Apple App Store, Maps, up to 5 hours talktime on 3G, up to 10 hours on 2G and 300 hours stand-by.
The measurements of the iPhone 3G are 4.5 by 2.4 by 0.48 inches (115.5 by 62.1 by 12.3 mm) and the weight is 4.7 ounces (133 grams).

iPhone 3G will be available in more than 70 countries later this year, beginning with customer availability in 22 countries: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Italy, Japan, Mexico, Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, UK and the US, on July 11th.
Via the Apple site. More iPhone 3G News. See also our report on AT&T iPhone 3G upgrades.