Yesterday Japanese accessory maker I-O Data presented a cute little keyboard which can be connected to cell phones for easy typing.

The CPKB-BT is equipped with Bluetooth 2.0 and is targeted at hardcore-users of mobile blogs and email.

The wireless keyboard is just 151.5×92.1×14mm and weighs only 170g. It is powered by a pair of AA batteries, lasting a total of 2-3 months if the keyboard is used for 1 hour a day.

The Japan-only CPKB-BT is priced at $153 (MSRP) and slated for release on June 11th.