Famitsu/Enterbrain has posted their hardware sales report for Japan in 2009. The exact dates are from December 29, 2008 to December 27, 2009. Here is the data below:
Nintendo DS - 4,025,313 (29,160,589 total)
PSP - 2,307,971 (13,386,455 total)
Nintendo Wii - 1,975,178 (9,501,999 total)
Playstation 3 - 1,727,041 (4,391,407 total)
Xbox 360 - 331,706 (1,197,873 total)