In the first finger update in a while (aside from really just announcing Humble Indie Bundles), Gordon shares his open-source (zlib-licensed) tools he worked on for the Shank Linux game port, among other projects. The spawned open-source tools include MojoShader, TheoraPlay, and MojoDDS.
Ryan's MojoShader is a library to handle Microsoft Direct3D HLSL shaders on non-Windows, non-Direct3D platforms. I.e. to handle HLSL D3D shaders on Linux with OpenGL or other render back-ends. Though this isn't exactly new work with the original source-code dating back to 2008. MojoShader is used within Unreal Tournament 3 and its OpenGL renderer, the Unity game engine, Super Meat Boy, and other games.
TheoraPlay is a simple and easy-to-use library for playing back Theora files. Lastly, MojoDDS has been around for a few months but is Ryan's way for handling DDS (DirectDraw Surface) files.