To promote the upcoming movies Victini and the Light Hero - Reshiram / Victini and the Dark Hero - Zekrom (ビクティニと白き英雄レシラム / ビクティニと黒き英雄ゼクロム), Carlita's Sazandora (カリータのサザンドラ) & Janta's Golugh (ジャンタのゴルーグ) will be distributed at McDonald's and via Nintendo Wi-Fi Connection in Japan.

The Pokémon will be distributed at participating McDonald's locations wireless from June 17th, 2011 until July 7th, 2011 and then on Nintendo Wi-Fi Connection from from July 8th, 2011 until September 8th, 2011. Players that have Pokémon Black can download Carlita's Sazandora while players of Pokémon White can download Janta's Golugh. Further details have yet to be revealed.


Source: http://shellspider.blog101.fc2.com/blog-entry-682.html

I really hope they'll have this same event in Europe (at least, via Wifi), as it'd give me a reasson to go eat at McDonalds (as I never go there at all).