Environment-mapped materials

I would love Sketchup to have environment mapped materials (also called cube maps), to help sell shiny or reflective surfaces.
I know, it’s just eye-candy…but actually that’s one of the big reasons we use Sketchup - attractive visuals, with full control over edges help to clearly portray shapes without needing to go crazy with geometry, and easy UV mapping, all without the fuss of exporting to a separate rendering software. Cube maps have been around for decades, they’re trivial to do in OpenGL, and very cheap.