Materials

Is there any possibility to make materials work on Wii? I mean such things as:

Normal mapping: I read there is no per-pixel-lighting on the Wii/gx, making normal maps useless. Is that true and if so, is there a way to get it in?
Parallax mapping (faking geometry with plain texture): Would be nice, but I have no idea how this is done.

And speaking of textures/materials, is there a good tutorial on how to use them?