(Telecompaper) At an event in New York, T-Mobile USA announced a new programme, JUMP!, which enables people to upgrade their phones when they want, up to twice a year as soon as six months from enrolment. In addition to JUMP!, T-Mobile announced a major expansion of its LTE network to reach 157 million people in 116 metro areas across the US. The company also unveiled a programme enabling families to get four phone lines with unlimited talk, text and web and up to 500MB of data for USD 100 per month, with no credit check or annual service contract required.