iPhone 3G with a 2nd Battery and a 1Seg TV Tuner offered by Softbank

iPhone 3G with a 2nd Battery and a 1Seg TV Tuner offered by Softbank. A new iPhone 3G with an external 1Seg TV Tuner and additional battery (for both the iPhone and the tuner itself) will be offered by Softbank in Japan.

It's plugged via the iPhone's proprietary port to recharge the battery, or Wifi for TV mode, so that there is no need for you to have physically the iPhone plug to the Tuner, it can be placed in your bag or away from where you are. The size of the unit it is 50 x 85 x 16mm and weights about 80g. You can expect a 80€ tag price for this.

(source)