SoftBank Mobile has announced (Translated Link) its new “iPhone for everybody” campaign, in which it is offering new customers a free 8GB iPhone 3G with a two year contract. The free handset is available with three different plans, including standard, premium, and student, which range in price from 490 Yen (roughly $5) to 1,960 Yen (~$20) a month. The carrier is also dropping the price on its standard monthly data plan from 5985 Yen (~$61) to 4410 Yen (~$45). In addition, it is offering customers who choose the 16GB model a payment plan of 480 Yen (~$4.93) a month over the course of the 24 month contract, for a total of 11,520 Yen (~$118). The promotion is scheduled to run from Friday, February 27 through May 31. [via AppleInsider]