Here’s a nice little offer from Softbank for those who, like David (Lejapon.fr), use only prepaid systems in Japan.

Now you’re able to get prepaid phone or SIM cards for use with the Softbank 3G network. Other nifty features are the Video Call System for face to face communication, and the Unlimited Mail 30 day service for only 300 yen (1.8 Eur). Neither SMS or MMS, real email.

SOFTBANK MOBILE Corp. (Head office: Minato-ku, Tokyo; Representative: Masayoshi Son; hereinafter ‘SBM’) announced that it will introduce 3G Prepaid Service from February 4, 2008.

SoftBank Prepaid service is a service which has been offered to 2G with the characteristics of 1) convenient for short period users or users mainly for receiving calls since it does not require a basic monthly charge, and 2) the service is safe for kids and elderly people because it prevents overuse. In addition to the said characteristics, SBM will offer ‘Unlimited Mail’ (application required) for 3G Prepaid Service customers, which enables customers to enjoy as many mails as they want for maximum 30 days with 300 yen (incl. tax). Moreover, as a unique service for 3G, SBM will offer Video Call on 3G Prepaid Service which enables customers to talk while seeing each other’s face.

Along with the 3G Prepaid Service launch, SBM will sell a light and compact model of ‘SoftBank 705Px’ (manufactured by Panasonic Mobile Communications Co., Ltd) as 3G Prepaid Service capable handset together with prepaid USIM card at SoftBank shops, SoftBank Online shop, major convenience stores, etc. Prepaid card (3,000 yen or 5,000 yen) will be available for both 2G and 3G Prepaid Service, and the methods available for top-up will remain the same.