SoftBank Corp CEO Masayoshi Son, who has met resistance from U.S. regulators to a possible acquisition of wireless carrier T-Mobile US Inc, on Tuesday said there had been new movement in the past few months and expressed hope for more discussion. He reiterated in an interview with a handful of reporters his stance that it would be good for U.S. consumers if his Sprint Corp, the No.3 U.S. mobile provider which SoftBank acquired last year, could become bigger and compete more effectively with the two largest carriers. We can make it more effective by getting bigger scale, he said at Tuesdays interview, conducted jointly with former U.S. Secretary of State Colin Powell who is attending SoftBank-sponsored events in Tokyo. Us becoming a more credible competitor in scale is something good for American consumers and citizens. SoftBank, which aims to become the worlds largest mobile Internet company, has been eager to combine Sprint with No.4 T-Mobile US, arguing that together they would give dominant players ATT Inc and Verizon more of a run for their money.