The official Japanese Pokémon website has announced two original Pokémon Black and White themed Nintendo DSi's. The boxsets include a copy Pokémon Black or White. The DSi's also include outlines of Reshiram and Zekrom on the lid. The boxsets will be released in Japan on November 20th, 2010 for 19,800 yen each.
Source:
http://www.pokemon-sp.jp/news-sp/2010/10/1007_01.html