The Platinum update for Minna no Pokémon Bokujō has been released and those that have the game already can download the update for free. Those that don't own the original version are able to download the updated version as well for 1000 Wii point. This update is for the Japanese version of the game only.
The update increases the number of Pokemon that can be stored in the farm from 1000 to 1500. Giratina's Origin Forme and Shaymin Sky Forme are also compatible with the new update. New events have been added and the farms can now also have water.
The update also allows you to set the BGM that will play during the game. In addition, Pokemon can now be selected by type.