Nintendo announced that they hit a new milestone with the Nintendo DS. They sold over 21 million units of the system worldwide. That equates to about a system being sold every two second since its launch nearly two years ago. "We’re thrilled to be announcing this milestone today," says George Harrison, Nintendo of America’s senior vice president of marketing and corporate communications, "especially since Nintendo DS was North America’s top-selling video game system of any type in June. We attribute this success to Nintendo’s overall strategy of offering something for everyone – from five-year-olds caring for their Nintendogs to 65-year-olds tuning their mental agility with Brain Age: Train Your Brain in Minutes a Day."