T-Mobile USA (TMUS +3.3%) is "Plan B" for SoftBank (SFTBF.PK) if its merger with Sprint (S +0.3%) doesn't go through, says CEO Masayoshi Son. But Son adds he "[plans] to go with Plan A if possible." Reuters reported last week SoftBank is talking with Deutsche Telekom (DTEGY.PK) about buying its 74% stake in T-Mobile USA if the Sprint merger fails thanks to a rival bid from Dish (DISH). For now, Sprint's board (unlike Clearwire's) is spurning Dish. As always, Son isn't lacking for confidence. "I am determined to be No. 1 in the world very soon in my industry ... You are lucky not to be my competitor."