Apple CEO Steve Jobs at WWDC 2008 has revealed the second-generation iPhone with new pricing and with 3G and GPS capabilities. An 8GB iPhone 3G will sell for $199 and the 16GB model will sell for $299, and will come in white and black versions. You can buy these iPhone 3G models on July 11.
What’s new? Firstly it has 3G networking, built in GPS, Microsoft Exchange ActiveSync support, iPhone 2.0 software, App Store, MobileMe for push email, calendar and contacts, and all the other features found on the first iPhone.

From press release, Just one year after launching the iPhone, we’re launching the new iPhone 3G that is twice as fast at half the price,” said Steve Jobs, Apple’s CEO. “ iPhone 3G supports Microsoft Exchange ActiveSync right out of the box, runs the incredible third party apps created with the iPhone SDK, and will be available in more than 70 countries around the world this year