The UK 3G mobile phone operator '3' has slashed the prices for its third generation mobile phone service in a desperate bid to kick-start sales. The company, controlled by Hong Kong's Hutchison Whampoa, is launching two new pricing plans on today which, it says, will undercut rivals by 50 per cent. Two new packages, VideoTalk 500 and VideoTalk 750, give customers 500 and 750 voice minutes to any network at any time for E36 and E50 a month respectively. The move is designed to try and ignite interest in '3' - the UK's first commercial 3G service. "For customers on plans with comparable amounts of voice calls on other networks, 3 is offering savings of as much as 50 per cent on the monthly charge," said the company................