Nintendo announced today that, so far, it has sold over 2 million Nintendo DS' since it launched earlier this year, selling at a rate of 100,000 units per week. Nintendogs contributes to its hand-held popularity, which has sold over 1 million copies since its European launch on October 7th in Europe. Nintendo hopes to repeat that success through the holidays with Mario Kart DS, its first Nintendo game to offer Wi-Fi gaming through the Nintendo Wi-Fi Connection.