Here are the U.S. hardware unit sales for January 2010 (vs January 2009):
1. Nintendo Wii: 465,800 (-31 percent)
2. Nintendo DS: 422,200 (-17 percent)
3. Xbox 360: 332,800 (+7.7 percent)
4. PlayStation 3: 276,900 (+36 percent)
5. PSP: 100,100 (-42 percent)
6. PlayStation 2: 41,600 (-59 percent)