Ok. I got some problems this week trying to port everything over to linux. Since I already have a dual boot situation with Mac OS X and Vista on my Mac I tried to get a linux installation working on my laptop. Problem is, that all kernels prior to 2.6.22 won't shut down the laptop's hard drive correctly. But unfortunately 3D acceleration with its ATI Radeon Xpress 1100 seems not to work correctly on an updated Feisty Fawn installation of Ubuntu with 2.6.22 kernel. So I'm currently waiting for the next release of Ubuntu, called "Gutsy Gibbon", and hope that this release fixes all the bugs I had with prior versions, so I could actually use linux as my main development platform.
Also I'm dumping my plans to make a multiplayer game out of my current OpenGL rendering project. This is because I think there aren't enough people out there playing my games, so it would be pretty hard to find opponents for a game with networking. That's exactly the same reason why I'm sure noone out there is playing SDLNet_Duel right now. Also adding the missing features to make a single player game out of the codebase doesn't require as much work, as completing network support and balancing would.
Downloads: Current codebase