Possible to use Pointiness in GLSL Viewport? Is it possible to view a model with Pointiness in the Blender Viewport without rendering? 

I'd like to mix Pointiness and Albedo in a Cycles texture paint workflow using the Materials (GLSL) view. When I attempt Pointiness meshes appear as colored as the first Diffuse shader color (Black in this case). Pointiness looks fine in Rendered view.
As of today, the pointiness function doesn't do anything in the OpenGL modes. You need to use rendered mode or bake it.