Sony Computer Entertainment America released April sales numbers for the PlayStation 3, PlayStation 2 and PSP hardware, as well as software. It seems that 187,071 PS3 units were sold in April and over 1 million copies of Grand Theft Auto IV for PS3 were sold in the same month across North America. 23.6% of U.S. PS3 owners purchased a copy of the game. Check the press release for more numbers.