Timothy Arceri has launched another crowd-funding campaign, this time for a lower amount (reportedly to just cover an additional week) and to implement and mainline the GL_ARB_arrays_of_arrays extension. The GL_ARB_arrays_of_arrays extension is part of the OpenGL 4.3 specification and basically allows for multi-dimensional arrays to be used within OpenGL/GLSL by allowing arrays of arrays to be initialized. The GL_ARB_arrays_of_arrays extension can be found via the registry at OpenGL.org.
Tim has already been working on the ARB_arrays_of_arrays and is looking for a paid week to work on some Piglit regression tests to work on his implementation. Most of the arrays-of-arrays work is being done within the GLSL code of Mesa and is being tested against Intel hardware, but it should be easily possible to hook up Gallium3D hardware drivers too.
For those wanting more details on the proposed GL_ARB_arrays_of_arrays crowd-funding project for Mesa, check out the IndieGoGo page.