Some more background information on the issue of race in videogames from Intelligentgamer who gathered quotes from MTV's Multiplayer blog interview series with several black game industry professionals. From the piece:
A 2005 video game industry demographics survey by the International Game Developers Association found that only 2% of game developers across all disciplines are black. Contrast that with the national demographics of the countries that participated in the survey (Australia, Canada, United States, and United Kingdom) who have a combined 9% black population (aggregated from each country's population and demographics data on Wikipedia).
Nielsen Entertainment also did a study on the demographics of video game players in 2005 and found that African Americans are spending more money to purchase games and more time to play them compared to your average gamer.