The official Pokemon website will release a free Pokemon Rittai Zukan BW (Pokedex 3D) for the Nintendo 3DS game console. The app will available through the eShop for the 3DS for free in North America on June 6th(the official opening of the eShop) and in Japan on June 17th.
The Pokedex app will allow users to view information and a 3D image on Pokemon from the recently released Pokemon Black and White games. Data on 16 Pokémon will be included with the app. Users can get additional Pokemon data from friends, through StreetPass downloads, or through the system’s augmented reality function.
source: nintendo pressroom