The Khronos announces the OpenGL 4.0 specification, calling this "a significant update to the most widely adopted 2D and 3D graphics API, and includes the GLSL 4.00 update to the OpenGL Shading language allowing developers to access the latest generation of GPU acceleration." There's an article about this on CNET News (thanks Mike Martinez) relating Khronos' claims that "OpenGL 4.0 exposes the same level of capability of GPUs as DirectX 11."