T-Mobile today launched the iPhone 4 in the U.K. According to Macworld U.K., the carrier is offering a range of 24-month contracts, from £30 to £60. Prior to today, the carrier had yet to post any details of when it would launch the handset and what pricing might be. “Bringing iPhone 4 to our customers in the UK is a fantastic move for T-Mobile,” Lysa Hardy, vice president of T-Mobile Propositions, told the publication. “With…