Mobile network Three in the U.K. has announced that it will be offering the iPhone 4. Similar to AT&T in the U.S., Three will begin taking iPhone pre-orders starting on June 15, with the device’s launch to follow on June 24. Service pricing has yet to be announced. Vodafone in India has confirmed that it will offer the iPhone 4 “in the coming months.” The company was not able to say when the launch will take place, but it is…