Media Create has also broken down the Japanese console market share, and not surprisingly (if you follow the top ten games) the GBA rules with over half of the market.
PSone 0.10%
PlayStation 2 38.79%
GameCube 8.14%
Game Boy Advance 0.96%
Game Boy Advance SP 51.48%
Xbox 0.45%
SwanCrystal 0.08%
