Currently, on the iPhone 4, FaceTime only works over WiFi and only with other iPhone 4's.
iPhone 4
Gaming on the iPhone
We need more iPhone 4 gaming info, stat!
Steve Jobs
Steve Jobs and the iPhone 4
Jobs demonstrates the iPhone's reach in the U.S.
Steve Jobs with the iPhone 4
Apple CEO Steve Jobs uses the new iPhone during the Apple Worldwide Developers Conference, Monday, June 7, 2010, in San Francisco. (AP Photo/Paul Sakuma)
Side by Side
Photographed June 7, 2010, this photo shows the new Apple iPhone 4 in San Francisco. On Tuesday, June 15, 2010, the first day Apple and AT&T started taking orders, buyers reported problems.
Lines in Japan
People wait in a long line in front of an Apple store which takes pre-orders ahead of the June 24 launch of iPhone 4 in Tokyo's Ginza shopping district Tuesday, June 15, 2010. Customers were instructed to submit reservations online with Softbank Mobile Corp., the iPhone's exclusive carrier in Japan, or at any of its retail outlets