Nintendo has announced it has reached the 10 million unit mark for global sales of its mobile handheld systems, the Nintendo DS. 4 million units have been sold in North America since the system's release and over 5 million were sold in Japan.
1.2 million units were also sold in North America in 2004. In comparison, Sony's rival system, the PlayStation Portable, sold 3.2 million units in North American between its launch in March last year and mid-December.