icculus will be talking about gaming on Linux in Chicago April 2nd.
Ryan "Icculus" Gordon is a former Loki Software employee who is now responsible for icculus.org, which hosts many Loki Software projects as well as several new projects created by himself and others. Gordon's site hosts projects with the code from such commercial games as Duke Nukem 3D, Shadow Warrior, Quake III Arena and many other free and open source projects for multiple platforms.I can tell the Flourish! conference is a good one because it does not have "Free", "Libre" or "Open" in its title directly. ;)
Last year's conf was documented in videos and hopefully the same will happen with icculus' talk.
There is a recent interview [Czech version], in which icculus talks about himself, graphics programming, a better world and porting.